diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 23f6b6994..4d8b53e3c 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -32,7 +32,7 @@ module ApplicationHelper
 
   extend Forwardable
   def_delegators :wiki_helper, :wikitoolbar_for, :heads_for_wiki_formatter
-  
+
   #Added by young
   #Define the course menu's link class
   # 不是数组的转化成数组，然后判断当前menu_item是否在给定的列表
@@ -53,10 +53,10 @@ module ApplicationHelper
   def authorize_for_course(controller, action)
     User.current.allowed_to?({:controller => controller, :action => action}, @course)
   end
-  
+
   def authorize_for_contest(controller, action)
     User.current.allowed_to?({:controller => controller, :action => action}, @contest)
-  end 
+  end
 
   # Display a link if user is authorized
   #
@@ -309,7 +309,7 @@ module ApplicationHelper
           s << h(block_given? ? yield(project) : project.name)
         else
         end
-        
+
         if project.try(:project_type) == Project::ProjectType_project
           unless User.current.member_of?(@project)
           s << "<span style = 'float: right;'>"
@@ -382,7 +382,7 @@ module ApplicationHelper
             s << "</ul></li>\n"
           end
         end
-        classes = (ancestors.empty? ? 'root' : 'child')       
+        classes = (ancestors.empty? ? 'root' : 'child')
         s << h(block_given? ? yield(project) : project.name)
         ancestors << project
       end
@@ -545,11 +545,11 @@ module ApplicationHelper
   def authoring(created, author, options={})
     l(options[:label] || :label_added_time_by, :author => link_to_user(author), :age => time_tag(created)).html_safe
   end
-  
+
   def added_time(created)
     l(:label_added_time, :age => time_tag(created)).html_safe
   end
-  
+
   def user_url_and_time(user_name, user_url, created)
     unless user_name.nil? || user_name == ''
       l(:label_added_time_by, :author => link_to(user_name, user_url), :age => time_tag(created)).html_safe
@@ -679,15 +679,15 @@ module ApplicationHelper
   def textilizable(*args)
     options = args.last.is_a?(Hash) ? args.pop : {}
     case args.size
-    when 1
-      obj = options[:object]
-      text = args.shift
-    when 2
-      obj = args.shift
-      attr = args.shift
-      text = obj.send(attr).html_safe.to_s
-    else
-      raise ArgumentError, 'invalid arguments to textilizable'
+      when 1
+        obj = options[:object]
+        text = args.shift
+      when 2
+        obj = args.shift
+        attr = args.shift
+        text = obj.send(attr).to_s
+      else
+        raise ArgumentError, 'invalid arguments to textilizable'
     end
     return '' if text.blank?
     project = options[:project] || @project || (obj && obj.respond_to?(:project) ? obj.project : nil)
@@ -727,7 +727,7 @@ module ApplicationHelper
       when 2
         obj = args.shift
         attr = args.shift
-        text = obj.send(attr).html_safe.to_s
+        text = obj.send(attr).to_s
       else
         raise ArgumentError, 'invalid arguments to textilizable'
     end
@@ -851,7 +851,7 @@ module ApplicationHelper
             else
               wiki_page_id = page.present? ? Wiki.titleize(page) : nil
               parent = wiki_page.nil? && obj.is_a?(WikiContent) && obj.page && project == link_project ? obj.page.title : nil
-              url_for(:only_path => only_path, :controller => 'wiki', :action => 'show', :project_id => link_project, 
+              url_for(:only_path => only_path, :controller => 'wiki', :action => 'show', :project_id => link_project,
                :id => wiki_page_id, :version => nil, :anchor => anchor, :parent => parent)
             end
           end
@@ -865,7 +865,7 @@ module ApplicationHelper
       end
     end
   end
-  
+
   def select_option_helper option
     tmp = Hash.new
     tmp={"" => ""}
@@ -1177,7 +1177,7 @@ module ApplicationHelper
   end
 
   def lang_options_for_select(blank=true)
-   { 'Chinese简体中文 '=> 'zh', :English => :en} 
+   { 'Chinese简体中文 '=> 'zh', :English => :en}
   end
 
   def label_tag_for(name, option_tags = nil, options = {})
@@ -1240,7 +1240,7 @@ module ApplicationHelper
       end
     end
     html.html_safe
-  end  
+  end
 
   def delete_link(url, options={})
     options = {
@@ -1254,8 +1254,8 @@ module ApplicationHelper
 
   def preview_link(url, form, target='preview', options={})
     content_tag 'a', l(:label_preview), {
-        :href => "#", 
-        :onclick => %|submitPreview("#{escape_javascript url_for(url)}", "#{escape_javascript form}", "#{escape_javascript target}"); return false;|, 
+        :href => "#",
+        :onclick => %|submitPreview("#{escape_javascript url_for(url)}", "#{escape_javascript form}", "#{escape_javascript target}"); return false;|,
         :accesskey => accesskey(:preview)
       }.merge(options)
   end
@@ -1343,12 +1343,12 @@ module ApplicationHelper
 
         tags = javascript_tag(
                    "var datepickerOptions={dateFormat: 'yy-mm-dd',minDate: new Date(), firstDay: #{start_of_week}, " +
-                     "showOn: 'button', buttonImageOnly: true, buttonImage: '" + 
+                     "showOn: 'button', buttonImageOnly: true, buttonImage: '" +
                      path_to_image('/images/calendar.png') +
                      "', showButtonPanel: true, showWeek: true, showOtherMonths: true, selectOtherMonths: true, onClose: function(dateText, inst) {TimeClose(dateText,inst);}, beforeShow : function(input){TimeBeforeShow(input);} };")
         jquery_locale = l('jquery.locale', :default => current_language.to_s)
         unless jquery_locale == 'en'
-          tags << javascript_include_tag("i18n/jquery.ui.datepicker-#{jquery_locale}.js") 
+          tags << javascript_include_tag("i18n/jquery.ui.datepicker-#{jquery_locale}.js")
         end
         tags
       end
@@ -1516,14 +1516,14 @@ module ApplicationHelper
       options
     end
   end
-  
+
   # Add by Tao
   def url_to_avatar(source)
     source = nil if source.kind_of?(String)
     get_avatar(source)
   end
   # Endof Tao's code
-  
+
   def date_format_local(time)
     date = time.strftime("%Y年%m月%d日")
   end
@@ -1539,7 +1539,7 @@ module ApplicationHelper
   def link_to_content_update(text, url_params = {}, html_options = {})
     link_to(text, url_params, html_options)
   end
-  
+
 #added by nie
 # Display watcher picture
   def show_more_watchers?(obj)
@@ -1549,7 +1549,7 @@ module ApplicationHelper
       return false
     end
   end
-  
+
   def show_watcher_profile(obj)
     count = 0
     html = ''
@@ -1574,7 +1574,7 @@ module ApplicationHelper
       return false
     end
   end
-  
+
   def show_bid_project(bid)
     html = ''
     if bid.projects.where('is_public = 1').count == 0
@@ -1586,15 +1586,15 @@ module ApplicationHelper
     end
     html.html_safe
   end
-  
+
  def show_bid_fans_picture(obj)
     html = ''
     if obj.watcher_users.count == 0
       html << (content_tag "span", l(:label_project_no_follow))
     else
-      obj.watcher_users.take(12).each do |user| 
+      obj.watcher_users.take(12).each do |user|
          html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
-      end 
+      end
     end
     html.html_safe
   end
@@ -1615,7 +1615,7 @@ module ApplicationHelper
       return false
     end
   end
-   
+
   def show_contest_project(bid)
     html = ''
     if contest.projects.where('is_public = 1').count == 0
@@ -1627,7 +1627,7 @@ module ApplicationHelper
     end
     html.html_safe
   end
-  
+
    def show_contest_project(contest)
     html = ''
     if contest.projects.where('is_public = 1').count == 0
@@ -1639,7 +1639,7 @@ module ApplicationHelper
     end
     html.html_safe
   end
-  
+
    def show_contest_softapplication(contest)
     html = ''
     if contest.softapplications.where('is_public = 1').count == 0
@@ -1651,19 +1651,19 @@ module ApplicationHelper
     end
     html.html_safe
   end
-    
+
  def show_contest_fans_picture(obj)
     html = ''
     if obj.watcher_users.count == 0
       html << (content_tag "span", l(:label_project_no_follow))
     else
-      obj.watcher_users.take(12).each do |user| 
+      obj.watcher_users.take(12).each do |user|
          html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
-      end 
+      end
     end
     html.html_safe
- end 
-  
+ end
+
 #display fans picture
   def show_more_fans?(obj)
     if obj.watcher_users.count > 12
@@ -1672,20 +1672,20 @@ module ApplicationHelper
       return false
     end
   end
-  
+
   def show_fans_picture(obj)
     html = ''
     if obj.watcher_users.count == 0
       html << (content_tag "span", l(:label_no_current_fans))
     else
-      obj.watcher_users.take(12).each do |user| 
+      obj.watcher_users.take(12).each do |user|
          html << (link_to image_tag(url_to_avatar(user), :class => "avatar"), user_path(user), :class => "avatar", :title => user.name)
-      end 
+      end
     end
     html.html_safe
   end
-  
- # added by bai   
+
+ # added by bai
   def show_more_participate?(obj)
     if obj.join_in_contests.count > 12
       return true
@@ -1693,7 +1693,7 @@ module ApplicationHelper
       return false
     end
   end
-  
+
    def show_participate_picture(obj)
     html = ''
     count = 0
@@ -1706,10 +1706,10 @@ module ApplicationHelper
        if count >= 12
          break
        end
-    end 
+    end
     html.html_safe
-  end 
-  
+  end
+
 #end
 
 # add by huang
@@ -1724,7 +1724,7 @@ module ApplicationHelper
        end
     end
     html.html_safe
-  end  
+  end
 # end
 
 #added by william
@@ -1733,7 +1733,7 @@ module ApplicationHelper
   end
 #end
 
-  
+
   def hadcommittedhomework(cur,curb)
     bid = Bid.find_by_id(curb)
     return true if bid.nil?
@@ -1748,7 +1748,7 @@ module ApplicationHelper
     else
       true
     end
-    
+
   end
 
   def render_dynamic_nav
@@ -1759,10 +1759,10 @@ module ApplicationHelper
   end
 
   def bootstrap_render_dynamic_nav
-    
+
     main_course_link = link_to l(:label_course_practice), {:controller => 'welcome', :action => 'index', :host => Setting.course_domain}
     main_project_link = link_to l(:label_project_deposit), {:controller => 'welcome', :action => 'index', :host => Setting.project_domain}
-    main_contest_link = link_to l(:label_contest_innovate), {:controller => 'welcome', :action => 'index', :host => Setting.contest_domain} 
+    main_contest_link = link_to l(:label_contest_innovate), {:controller => 'welcome', :action => 'index', :host => Setting.contest_domain}
 
     course_all_course_link = link_to l(:label_course_all), {:controller => 'courses', :action => 'index'}
     course_teacher_all_link = link_to l(:label_teacher_all), {:controller => 'users', :action => 'index', :role => 'teacher', :host => Setting.course_domain}
@@ -1774,20 +1774,20 @@ module ApplicationHelper
     forum_link = link_to l(:label_project_module_forums), {:controller => "forums", :action => "index"}
     stores_link = link_to l(:label_stores_index), {:controller => 'stores', :action=> 'index'}
 
-    
+
     school_all_school_link = link_to l(:label_school_all), {:controller => 'school', :action => 'index'}
-    
-    
+
+
     #@nav_dispaly_project_label
     nav_list = Array.new
     nav_list.push(school_all_school_link) if @nav_dispaly_course_all_label && @show_course == 1
     nav_list.push(course_all_course_link) if @nav_dispaly_course_all_label && @show_course == 1
     nav_list.push(course_teacher_all_link) if @nav_dispaly_teacher_all_label && @show_course == 1
-    
+
     nav_list.push(main_project_link) if @nav_dispaly_main_project_label
     nav_list.push(main_course_link) if @nav_dispaly_main_course_label && @show_course == 1
     nav_list.push(main_contest_link) if @nav_dispaly_main_contest_label && @show_contest == 1
-    
+
     nav_list.push(courses_link) if @nav_dispaly_course_label && @show_course == 1
     nav_list.push(projects_link) if @nav_dispaly_project_label
     nav_list.push(users_link) if @nav_dispaly_user_label
@@ -1797,7 +1797,7 @@ module ApplicationHelper
     nav_list.push(stores_link) if @nav_dispaly_store_all_label
 
     content_li = ''
-    nav_list.collect do |nav_item| 
+    nav_list.collect do |nav_item|
       content_li << content_tag(:li, nav_item)
     end
     content_li.html_safe
@@ -1806,12 +1806,12 @@ module ApplicationHelper
   def current_user
     User.current
   end
-  
+
   # def hadcommittedforcontest(curu)
     # message = JournalsForMessage.find_by_sql("select * from journals_for_messages where jour_type = 'Softapplication' ")
     # message.each do |createmessage|
-      # if createmessage.user_id == curu       
-        # return true       
+      # if createmessage.user_id == curu
+        # return true
       # end
     # end
   # end
@@ -1824,11 +1824,12 @@ module ApplicationHelper
     logos.push(link_to image_tag('/images/footer_logo/iscas.png', :alt=>"iscas"), "http://www.iscas.ac.cn" )
     logos.push(link_to image_tag('/images/footer_logo/inforbus.png', :alt=>"inforbus"), "http://www.inforbus.com" )
 
-    logos.collect! { |logo| 
+    logos.collect! { |logo|
       content_tag(:li, logo.html_safe, :class => li_class.to_s)
     }
 
     content_tag(:ul, logos.join("").html_safe, :class => ul_class.to_s).html_safe
   end
-  
+
+
 end
diff --git a/app/models/forum.rb b/app/models/forum.rb
index cd9c210dd..24b5b15e0 100644
--- a/app/models/forum.rb
+++ b/app/models/forum.rb
@@ -11,7 +11,7 @@ class Forum < ActiveRecord::Base
   'creator_id'
   validates_presence_of :name, :creator_id, :description
   validates_length_of :name, maximum: 50
-  validates_length_of :description, maximum: 255
+  #validates_length_of :description, maximum: 255
   validates :name, :uniqueness => true
   
   acts_as_taggable
diff --git a/app/models/issue_query.rb b/app/models/issue_query.rb
index f428c5d81..7e70d55c7 100644
--- a/app/models/issue_query.rb
+++ b/app/models/issue_query.rb
@@ -132,7 +132,7 @@ class IssueQuery < Query
       :type => :list_optional, :values => group_values
     ) unless group_values.empty?
 
-    role_values = Role.givable.collect {|r| [r.name, r.id.to_s] }
+    role_values = Role.project_role.collect {|r| [r.name, r.id.to_s] }
     add_available_filter("assigned_to_role",
       :type => :list_optional, :values => role_values
     ) unless role_values.empty?
diff --git a/app/models/memo.rb b/app/models/memo.rb
index 5a909f782..2c0d3571f 100644
--- a/app/models/memo.rb
+++ b/app/models/memo.rb
@@ -8,7 +8,7 @@ class Memo < ActiveRecord::Base
 	# 若是主题帖，则内容可以是空
 	#validates :content, presence: true, if: Proc.new{|o| !o.parent_id.nil? }
 	validates_length_of :subject, maximum: 50
-	validates_length_of :content, maximum: 3072
+	#validates_length_of :content, maximum: 3072
 	validate :cannot_reply_to_locked_topic, :on => :create
 
 	acts_as_tree :counter_cache => :replies_count, :order => "#{Memo.table_name}.created_at ASC"
diff --git a/app/models/role.rb b/app/models/role.rb
index cba219d0d..57fccd53c 100644
--- a/app/models/role.rb
+++ b/app/models/role.rb
@@ -67,6 +67,16 @@ class Role < ActiveRecord::Base
     :in => ISSUES_VISIBILITY_OPTIONS.collect(&:first),
     :if => lambda {|role| role.respond_to?(:issues_visibility)}
 
+  #获取项目相关角色
+  def self.project_role
+    self.givable[0..2]
+  end
+
+  #获取课程相关角色
+  def self.course_role
+    self.givable[3..5]
+  end
+
   # Copies attributes from another role, arg can be an id or a Role
   def copy_from(arg, options={})
     return unless arg.present?
diff --git a/app/views/bids/_history.html.erb b/app/views/bids/_history.html.erb
index b0bc22479..0961e3cf8 100644
--- a/app/views/bids/_history.html.erb
+++ b/app/views/bids/_history.html.erb
@@ -5,7 +5,7 @@
 <div id='leave-message'>
 	<%= render :partial => 'new', :locals => {:bid => @bid, :sta => @state} %>
 </div>
-<% label = '';
+<% label = ''
   case @bid.reward_type
     when 1
       label = l(:label_respond_requirement)
diff --git a/app/views/bids/_new.html.erb b/app/views/bids/_new.html.erb
index cf9f8df30..7dd7492c0 100644
--- a/app/views/bids/_new.html.erb
+++ b/app/views/bids/_new.html.erb
@@ -41,7 +41,7 @@
 <table border="0" width="525px" align="center">
 	<tr>
 		<td align="right"> <%= submit_tag l(:button_leave_meassge), :name => nil , :class => "bid_btn", :onmouseout => "this.style.backgroundPosition = 'left top'", :onmouseover => "this.style.backgroundPosition = 'left -31px'"%>
-		<%= submit_tag l(:button_clear), :name => nil, :onclick => "clearMessage('bid_message_message');", :type => 'button', :class => "bid_btn", :onmouseout => "this.style.backgroundPosition = 'left top'", :onmouseover => "this.style.backgroundPosition = 'left -31px'" %> </td>
+		<%= submit_tag l(:button_clear_meassge), :name => nil, :onclick => "clearMessage('bid_message_message');", :type => 'button', :class => "bid_btn", :onmouseout => "this.style.backgroundPosition = 'left top'", :onmouseover => "this.style.backgroundPosition = 'left -31px'" %> </td>
 	</tr>
 </table>
 <!-- end -->
diff --git a/app/views/bids/show.html.erb b/app/views/bids/show.html.erb
index 96ed4ea75..3107d8bd6 100644
--- a/app/views/bids/show.html.erb
+++ b/app/views/bids/show.html.erb
@@ -4,11 +4,11 @@
 	<span class="body">
 		<h3><%= link_to(@bid.author.lastname+@bid.author.firstname, user_path(@bid.author))%>：<%= link_to(@bid.name,respond_path(@bid)) %></h3>
 		<% if @bid.reward_type.nil? or @bid.reward_type == 1%>
-		<p>  
+		<p>
 			<strong><%= l(:label_bids_reward_method) %><span class="bonus"><%= l(:label_call_bonus) %>&nbsp; <%= l(:label_RMB_sign) %><%= @bid.budget %></span></strong>
 		</p>
 		<% elsif @bid.reward_type == 2%>
-		<p>		
+		<p>
 			<strong><%= l(:label_bids_reward_method) %><span class="bonus"><%= @bid.budget%></span></strong>
 		</p>
 		<% else %>
diff --git a/app/views/forums/new.html.erb b/app/views/forums/new.html.erb
index 19c911c37..2e8924c90 100644
--- a/app/views/forums/new.html.erb
+++ b/app/views/forums/new.html.erb
@@ -4,7 +4,7 @@
    @nav_dispaly_main_contest_label = 1 %>
 <% @nav_dispaly_forum_label = 1%>
 <!-- added by fq -->
-<h3><%= l :label_forum_new %></h1>
+<h1><%= l :label_forum_new %></h1>
 
 <%= render 'form' %>
 
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index d106ed3d2..1d66874ee 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -1334,7 +1334,7 @@ zh:
   label_gantt_progress_line: Progress line
   setting_jsonp_enabled: Enable JSONP support
   field_inherit_members: Inherit members
-  field_closed_on: Closed
+  field_closed_on: 已关闭
   setting_default_projects_tracker_ids: Default trackers for new projects
   label_total_time: 合计
   label_create_time: 创建时间                     #Customer added！Added by nie
@@ -1415,6 +1415,7 @@ zh:
  
   #fq
   button_leave_meassge: 留言
+  button_clear_meassge: 清除留言
   label_leave_message_to: 给用户 %{name}留言
   label_leave_message: 留言内容
   label_message: 留言板
diff --git a/db/migrate/20140814062455_change_forum_description.rb b/db/migrate/20140814062455_change_forum_description.rb
new file mode 100644
index 000000000..1bcd81d81
--- /dev/null
+++ b/db/migrate/20140814062455_change_forum_description.rb
@@ -0,0 +1,9 @@
+class ChangeForumDescription < ActiveRecord::Migration
+  def up
+    change_column :forums, :description, :text, default: nil
+  end
+
+  def down
+    change_column :forums, :description, :string, default: ''
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index cdedc6a2c..525cfb745 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20140812065417) do
+ActiveRecord::Schema.define(:version => 20140814062455) do
 
   create_table "activities", :force => true do |t|
     t.integer "act_id",   :null => false
@@ -441,21 +441,21 @@ ActiveRecord::Schema.define(:version => 20140812065417) do
     t.datetime "created_at",                    :null => false
     t.datetime "updated_at",                    :null => false
     t.integer  "sort_type"
-    t.integer  "image_width",  :default => 107
-    t.integer  "image_height", :default => 63
     t.integer  "show_course",  :default => 1
     t.integer  "show_contest", :default => 1
+    t.integer  "image_width",  :default => 107
+    t.integer  "image_height", :default => 63
   end
 
   create_table "forums", :force => true do |t|
-    t.string   "name",                         :null => false
-    t.string   "description",  :default => ""
+    t.string   "name",                        :null => false
+    t.text     "description"
     t.integer  "topic_count",  :default => 0
     t.integer  "memo_count",   :default => 0
     t.integer  "last_memo_id", :default => 0
-    t.integer  "creator_id",                   :null => false
-    t.datetime "created_at",                   :null => false
-    t.datetime "updated_at",                   :null => false
+    t.integer  "creator_id",                  :null => false
+    t.datetime "created_at",                  :null => false
+    t.datetime "updated_at",                  :null => false
   end
 
   create_table "groups_users", :id => false, :force => true do |t|