diff --git a/public/react/public/js/editormd/editormd.min.js b/public/react/public/js/editormd/editormd.min.js
index 0b99c713a..e911b76ad 100755
--- a/public/react/public/js/editormd/editormd.min.js
+++ b/public/react/public/js/editormd/editormd.min.js
@@ -3601,6 +3601,13 @@
             
             return text;
         };
+        markedRenderer.em = function (text) {
+            if (text && text.substring('$$') != -1) {
+                return text;
+            } else {
+                return '<em>' + text + '</em>';
+            }
+        };
 
         markedRenderer.paragraph = function(text) {
             var isTeXInline     = /\$\$(.*)\$\$/g.test(text);
diff --git a/public/react/public/js/js_min_all.js b/public/react/public/js/js_min_all.js
index 0d56d86ba..6d0838c59 100755
--- a/public/react/public/js/js_min_all.js
+++ b/public/react/public/js/js_min_all.js
@@ -71,6 +71,7 @@ function AssertException(message){this.message=message}function assert(exp,messa
 /*! jQuery.flowchart.js v1.1.0 | jquery.flowchart.min.js | jQuery plugin for flowchart.js. | MIT License | By: Pandao | https://github.com/pandao/jquery.flowchart.js | 2015-03-09 */
 (function(factory){if(typeof require==="function"&&typeof exports==="object"&&typeof module==="object"){module.exports=factory}else{if(typeof define==="function"){factory(jQuery,flowchart)}else{factory($,flowchart)}}}(function(jQuery,flowchart){(function($){$.fn.flowChart=function(options){options=options||{};var defaults={"x":0,"y":0,"line-width":2,"line-length":50,"text-margin":10,"font-size":14,"font-color":"black","line-color":"black","element-color":"black","fill":"white","yes-text":"yes","no-text":"no","arrow-end":"block","symbols":{"start":{"font-color":"black","element-color":"black","fill":"white"},"end":{"class":"end-element"}},"flowstate":{"past":{"fill":"#CCCCCC","font-size":12},"current":{"fill":"black","font-color":"white","font-weight":"bold"},"future":{"fill":"white"},"request":{"fill":"blue"},"invalid":{"fill":"#444444"},"approved":{"fill":"#58C4A3","font-size":12,"yes-text":"APPROVED","no-text":"n/a"},"rejected":{"fill":"#C45879","font-size":12,"yes-text":"n/a","no-text":"REJECTED"}}};return this.each(function(){var $this=$(this);var diagram=flowchart.parse($this.text());var settings=$.extend(true,defaults,options);$this.html("");diagram.drawSVG(this,settings)})}})(jQuery)}));
 
+
 /*
  * Editor.md
  *
@@ -82,7 +83,8 @@ function AssertException(message){this.message=message}function assert(exp,messa
  * {@link       https://github.com/pandao/editor.md}
  * @updateTime  2015-06-09
  */
-function initEditormdPasteUpload(e,i,o){e.cm.getInputField().addEventListener("paste",function(o){_whenPasterDoUpload(o,i,function(i){i.id&&e.cm.replaceSelection("![](/api/attachments/"+i.id+")")})})}!function(e){"use strict";"function"==typeof require&&"object"==typeof exports&&"object"==typeof module?module.exports=e:"function"==typeof define?define.amd||define(["../../../../editormd/examples/js/jquery.min"],e):window.editormd=e()}(function(){"use strict";var e="undefined"!=typeof jQuery?jQuery:Zepto;if(void 0!==e){var t,i,o,r=function(e,t){return new r.fn.init(e,t)};r.title=r.$name="Editor.md",r.version="1.5.0",r.homePage="https://pandao.github.io/editor.md/",r.classPrefix="editormd-",r.toolbarModes={full:["undo","redo","|","bold","del","italic","quote","ucwords","uppercase","lowercase","|","h1","h2","h3","h4","h5","h6","|","list-ul","list-ol","hr","|","link","reference-link","image","code","preformatted-text","code-block","table","datetime","emoji","html-entities","pagebreak","|","goto-line","watch","preview","fullscreen","clear","search","|","help","info"],simple:["undo","redo","|","bold","del","italic","quote","uppercase","lowercase","|","h1","h2","h3","h4","h5","h6","|","list-ul","list-ol","hr","|","watch","preview","fullscreen","|","help","info"],mini:["undo","redo","|","watch","preview","|","help","info"]},r.defaults={mode:"gfm",name:"",value:"",theme:"",editorTheme:"default",previewTheme:"",markdown:"",appendMarkdown:"",width:"100%",height:"100%",path:"./lib/",pluginPath:"",delay:300,autoLoadModules:!0,watch:!0,placeholder:"Enjoy Markdown! coding now...",gotoLine:!0,codeFold:!1,autoHeight:!1,autoFocus:!0,autoCloseTags:!0,searchReplace:!0,syncScrolling:!0,readOnly:!1,tabSize:4,indentUnit:4,lineNumbers:!0,lineWrapping:!0,autoCloseBrackets:!0,showTrailingSpace:!0,matchBrackets:!0,indentWithTabs:!0,styleSelectedText:!0,matchWordHighlight:!0,styleActiveLine:!0,dialogLockScreen:!0,dialogShowMask:!0,dialogDraggable:!0,dialogMaskBgColor:"#fff",dialogMaskOpacity:.1,fontSize:"13px",saveHTMLToTextarea:!1,disabledKeyMaps:[],onload:function(){},onresize:function(){},onchange:function(){},onwatch:null,onunwatch:null,onpreviewing:function(){},onpreviewed:function(){},onfullscreen:function(){},onfullscreenExit:function(){},onscroll:function(){},onpreviewscroll:function(){},imageUpload:!1,imageFormats:["jpg","jpeg","gif","png","bmp","webp"],imageUploadURL:"",crossDomainUpload:!1,uploadCallbackURL:"",toc:!0,tocm:!1,tocTitle:"",tocDropdown:!1,tocContainer:"",tocStartLevel:1,htmlDecode:"style,iframe|on*",pageBreak:!0,atLink:!0,emailLink:!0,taskList:!1,emoji:!1,tex:!1,flowChart:!1,sequenceDiagram:!1,previewCodeHighlight:!0,toolbar:!0,toolbarAutoFixed:!0,toolbarIcons:"full",toolbarTitles:{},toolbarHandlers:{ucwords:function(){return r.toolbarHandlers.ucwords},lowercase:function(){return r.toolbarHandlers.lowercase}},toolbarCustomIcons:{lowercase:'<a href="javascript:;" title="Lowercase" unselectable="on"><i class="fa" name="lowercase" style="font-size:24px;margin-top: -10px;">a</i></a>',ucwords:'<a href="javascript:;" title="ucwords" unselectable="on"><i class="fa" name="ucwords" style="font-size:20px;margin-top: -3px;">Aa</i></a>'},toolbarIconsClass:{undo:"fa-undo",redo:"fa-repeat",bold:"fa-bold",del:"fa-strikethrough",italic:"fa-italic",quote:"fa-quote-left",uppercase:"fa-font",h1:r.classPrefix+"bold",h2:r.classPrefix+"bold",h3:r.classPrefix+"bold",h4:r.classPrefix+"bold",h5:r.classPrefix+"bold",h6:r.classPrefix+"bold","list-ul":"fa-list-ul","list-ol":"fa-list-ol",hr:"fa-minus",link:"fa-link","reference-link":"fa-anchor",image:"fa-picture-o",code:"fa-code","preformatted-text":"fa-file-code-o","code-block":"fa-file-code-o",table:"fa-table",datetime:"fa-clock-o",emoji:"fa-smile-o","html-entities":"fa-copyright",pagebreak:"fa-newspaper-o","goto-line":"fa-terminal",watch:"fa-eye-slash",unwatch:"fa-eye",preview:"fa-desktop",search:"fa-search",fullscreen:"fa-arrows-alt",clear:"fa-eraser",help:"fa-question-circle",info:"fa-info-circle"},toolbarIconTexts:{},lang:{name:"zh-cn",description:"开源在线Markdown编辑器<br/>Open source online Markdown editor.",tocTitle:"目录",toolbar:{undo:"撤销（Ctrl+Z）",redo:"重做（Ctrl+Y）",bold:"粗体",del:"删除线",italic:"斜体",quote:"引用",ucwords:"将每个单词首字母转成大写",uppercase:"将所选转换成大写",lowercase:"将所选转换成小写",h1:"标题1",h2:"标题2",h3:"标题3",h4:"标题4",h5:"标题5",h6:"标题6","list-ul":"无序列表","list-ol":"有序列表",hr:"横线",link:"链接","reference-link":"引用链接",image:"添加图片",code:"行内代码","preformatted-text":"预格式文本 / 代码块（缩进风格）","code-block":"代码块（多语言风格）",table:"添加表格",datetime:"日期时间",emoji:"Emoji表情","html-entities":"HTML实体字符",pagebreak:"插入分页符","goto-line":"跳转到行",watch:"关闭实时预览",unwatch:"开启实时预览",preview:"全窗口预览HTML（按 Shift + ESC还原）",fullscreen:"全屏（按ESC还原）",clear:"清空",search:"搜索",help:"使用帮助",info:"关于"+r.title},buttons:{enter:"确定",cancel:"取消",close:"关闭"},dialog:{link:{title:"添加链接",url:"链接地址",urlTitle:"链接标题",urlEmpty:"错误：请填写链接地址。"},referenceLink:{title:"添加引用链接",name:"引用名称",url:"链接地址",urlId:"链接ID",urlTitle:"链接标题",nameEmpty:"错误：引用链接的名称不能为空。",idEmpty:"错误：请填写引用链接的ID。",urlEmpty:"错误：请填写引用链接的URL地址。"},image:{title:"添加图片",url:"图片地址",link:"图片链接",alt:"图片描述",uploadButton:"本地上传",imageURLEmpty:"错误：图片地址不能为空。",uploadFileEmpty:"错误：上传的图片不能为空。",formatNotAllowed:"错误：只允许上传图片文件，允许上传的图片文件格式有："},preformattedText:{title:"添加预格式文本或代码块",emptyAlert:"错误：请填写预格式文本或代码的内容。"},codeBlock:{title:"添加代码块",selectLabel:"代码语言：",selectDefaultText:"请选择代码语言",otherLanguage:"其他语言",unselectedLanguageAlert:"错误：请选择代码所属的语言类型。",codeEmptyAlert:"错误：请填写代码内容。"},htmlEntities:{title:"HTML 实体字符"},help:{title:"使用帮助"}}}},r.classNames={tex:r.classPrefix+"tex"},r.dialogZindex=99999,r.$katex=null,r.$marked=null,r.$CodeMirror=null,r.$prettyPrint=null,r.prototype=r.fn={state:{watching:!1,loaded:!1,preview:!1,fullscreen:!1},init:function(t,i){i=i||{},"object"==typeof t&&(i=t);var a=this.classPrefix=r.classPrefix,n=o=e.extend(!0,r.defaults,i);this.settings=n,t="object"==typeof t?n.id:t;var s=this.editor=e("#"+t);this.id=t,this.lang=n.lang;var l=this.classNames={textarea:{html:a+"html-textarea",markdown:a+"markdown-textarea"}};n.pluginPath=""===n.pluginPath?n.path+"../plugins/":n.pluginPath,this.state.watching=!!n.watch,s.hasClass("editormd")||s.addClass("editormd"),s.css({width:"number"==typeof n.width?n.width+"px":n.width,height:"number"==typeof n.height?n.height+"px":n.height}),n.autoHeight&&s.css("height","auto");var c=this.markdownTextarea=s.children("textarea");c.length<1&&(s.append("<textarea></textarea>"),c=this.markdownTextarea=s.children("textarea")),c.addClass(l.textarea.markdown).attr("placeholder",n.placeholder),void 0!==c.attr("name")&&""!==c.attr("name")||c.attr("name",""!==n.name?n.name:t+"-markdown-doc");var h=[n.readOnly?"":'<a href="javascript:;" class="fa fa-close '+a+'preview-close-btn"></a>',n.saveHTMLToTextarea?'<textarea class="'+l.textarea.html+'" name="'+t+'-html-code"></textarea>':"",'<div class="'+a+'preview"><div class="markdown-body '+a+'preview-container"></div></div>','<div class="'+a+'container-mask" style="display:block;"></div>','<div class="'+a+'mask"></div>'].join("\n");return s.append(h).addClass(a+"vertical"),""!==n.theme&&s.addClass(a+"theme-"+n.theme),this.mask=s.children("."+a+"mask"),this.containerMask=s.children("."+a+"container-mask"),""!==n.markdown&&c.val(n.markdown),""!==n.appendMarkdown&&c.val(c.val()+n.appendMarkdown),this.htmlTextarea=s.children("."+l.textarea.html),this.preview=s.children("."+a+"preview"),this.previewContainer=this.preview.children("."+a+"preview-container"),""!==n.previewTheme&&this.preview.addClass(a+"preview-theme-"+n.previewTheme),"function"==typeof define&&define.amd&&("undefined"!=typeof katex&&(r.$katex=katex),n.searchReplace&&!n.readOnly&&(r.loadCSS(n.path+"codemirror/addon/dialog/dialog"),r.loadCSS(n.path+"codemirror/addon/search/matchesonscrollbar"))),"function"==typeof define&&define.amd||!n.autoLoadModules?("undefined"!=typeof CodeMirror&&(r.$CodeMirror=CodeMirror),"undefined"!=typeof marked&&(r.$marked=marked),this.setCodeMirror().setToolbar().loadedDisplay()):this.loadQueues(),this},loadQueues:function(){var e=this,t=o,i=t.path,a=function(){r.isIE8?e.loadedDisplay():t.flowChart||t.sequenceDiagram?r.loadScript(i+"raphael.min",function(){r.loadScript(i+"underscore.min",function(){!t.flowChart&&t.sequenceDiagram?r.loadScript(i+"sequence-diagram.min",function(){e.loadedDisplay()}):t.flowChart&&!t.sequenceDiagram?r.loadScript(i+"flowchart.min",function(){r.loadScript(i+"jquery.flowchart.min",function(){e.loadedDisplay()})}):t.flowChart&&t.sequenceDiagram&&r.loadScript(i+"flowchart.min",function(){r.loadScript(i+"jquery.flowchart.min",function(){r.loadScript(i+"sequence-diagram.min",function(){e.loadedDisplay()})})})})}):e.loadedDisplay()};return t.searchReplace&&!t.readOnly&&(r.loadCSS(i+"codemirror/addon/dialog/dialog"),r.loadCSS(i+"codemirror/addon/search/matchesonscrollbar")),t.codeFold&&r.loadCSS(i+"codemirror/addon/fold/foldgutter"),r.$CodeMirror=CodeMirror,r.loadScript(i+"codemirror/modes.min",function(){r.loadScript(i+"codemirror/addons.min",function(){if(e.setCodeMirror(),"gfm"!==t.mode&&"markdown"!==t.mode)return e.loadedDisplay(),!1;e.setToolbar(),r.loadScript(i+"marked.min",function(){r.$marked=marked,t.previewCodeHighlight?r.loadScript(i+"prettify.min",function(){a()}):a()})})}),this},setTheme:function(e){var t=this.editor,i=o.theme,r=this.classPrefix+"theme-";return t.removeClass(r+i).addClass(r+e),o.theme=e,this},setEditorTheme:function(e){var t=o;return t.editorTheme=e,"default"!==e&&r.loadCSS(t.path+"codemirror/theme/"+t.editorTheme),this.cm.setOption("theme",e),this},setCodeMirrorTheme:function(e){return this.setEditorTheme(e),this},setPreviewTheme:function(e){var t=this.preview,i=o.previewTheme,r=this.classPrefix+"preview-theme-";return t.removeClass(r+i).addClass(r+e),o.previewTheme=e,this},setCodeMirror:function(){var e=o,t=this.editor;"default"!==e.editorTheme&&r.loadCSS(e.path+"codemirror/theme/"+e.editorTheme);var i={mode:e.mode,theme:e.editorTheme,tabSize:e.tabSize,dragDrop:!1,autofocus:e.autoFocus,autoCloseTags:e.autoCloseTags,readOnly:!!e.readOnly&&"nocursor",indentUnit:e.indentUnit,lineNumbers:e.lineNumbers,lineWrapping:e.lineWrapping,extraKeys:{"Ctrl-Q":function(e){e.foldCode(e.getCursor())}},foldGutter:e.codeFold,gutters:["CodeMirror-linenumbers","CodeMirror-foldgutter"],matchBrackets:e.matchBrackets,indentWithTabs:e.indentWithTabs,styleActiveLine:e.styleActiveLine,styleSelectedText:e.styleSelectedText,autoCloseBrackets:e.autoCloseBrackets,showTrailingSpace:e.showTrailingSpace,highlightSelectionMatches:!!e.matchWordHighlight&&{showToken:"onselected"!==e.matchWordHighlight&&/\w/}};return 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t=o;return void 0!==t["on"+e]&&(t["on"+e]=function(){}),this},showToolbar:function(t){var i=o;return i.readOnly?this:(i.toolbar&&(this.toolbar.length<1||""===this.toolbar.find("."+this.classPrefix+"menu").html())&&this.setToolbar(),i.toolbar=!0,this.toolbar.show(),this.resize(),e.proxy(t||function(){},this)(),this)},hideToolbar:function(t){return o.toolbar=!1,this.toolbar.hide(),this.resize(),e.proxy(t||function(){},this)(),this},setToolbarAutoFixed:function(t){var i=this.state,r=this.editor,a=this.toolbar,n=o;void 0!==t&&(n.toolbarAutoFixed=t);return!i.fullscreen&&!i.preview&&n.toolbar&&n.toolbarAutoFixed&&e(window).bind("scroll",function(){var t=e(window),i=t.scrollTop();if(!n.toolbarAutoFixed)return!1;i-r.offset().top>10&&i<r.height()?a.css({position:"fixed",width:r.width()+"px",left:(t.width()-r.width())/2+"px"}):a.css({position:"absolute",width:"100%",left:0})}),this},setToolbar:function(){var e=o;if(e.readOnly)return this;var t=this.editor,i=(this.preview,this.classPrefix),a=this.toolbar=t.children("."+i+"toolbar");if(e.toolbar&&a.length<1){var n='<div class="'+i+'toolbar"><div class="'+i+'toolbar-container"><ul class="'+i+'menu"></ul></div></div>';t.append(n),a=this.toolbar=t.children("."+i+"toolbar")}if(!e.toolbar)return a.hide(),this;a.show();for(var s="function"==typeof e.toolbarIcons?e.toolbarIcons(this):"string"==typeof e.toolbarIcons?r.toolbarModes[e.toolbarIcons]:e.toolbarIcons,l=a.find("."+this.classPrefix+"menu"),c="",h=!1,d=0,u=s.length;d<u;d++){var f=s[d];if("||"===f)h=!0;else if("|"===f)c+='<li class="divider" unselectable="on">|</li>';else{var p=/h(\d)/.test(f),m=f;"watch"!==f||e.watch||(m="unwatch");var g=e.lang.toolbar[m],w=e.toolbarIconTexts[m],v=e.toolbarIconsClass[m];g=void 0===g?"":g,w=void 0===w?"":w,v=void 0===v?"":v;var k=h?'<li class="pull-right">':"<li>";void 0!==e.toolbarCustomIcons[f]&&"function"!=typeof e.toolbarCustomIcons[f]?k+=e.toolbarCustomIcons[f]:(k+='<a href="javascript:;" title="'+g+'" unselectable="on">',k+='<i class="fa '+v+'" name="'+f+'" unselectable="on">'+(p?f.toUpperCase():""===v?w:"")+"</i>",k+="</a>"),k+="</li>",c=h?k+c:c+k}}return l.html(c),l.find('[title="Lowercase"]').attr("title",e.lang.toolbar.lowercase),l.find('[title="ucwords"]').attr("title",e.lang.toolbar.ucwords),this.setToolbarHandler(),this.setToolbarAutoFixed(),this},dialogLockScreen:function(){return e.proxy(r.dialogLockScreen,this)(),this},dialogShowMask:function(t){return e.proxy(r.dialogShowMask,this)(t),this},getToolbarHandles:function(e){var t=this.toolbarHandlers=r.toolbarHandlers;return e&&void 0!==toolbarIconHandlers[e]?t[e]:t},setToolbarHandler:function(){var t=this,i=o;if(!i.toolbar||i.readOnly)return this;var a=this.toolbar,n=this.cm,s=this.classPrefix,l=this.toolbarIcons=a.find("."+s+"menu > li > a"),c=this.getToolbarHandles();return l.bind(r.mouseOrTouch("click","touchend"),function(o){var r=e(this).children(".fa"),a=r.attr("name"),s=n.getCursor(),l=n.getSelection();if(""!==a)return t.activeIcon=r,void 0!==c[a]?e.proxy(c[a],t)(n):void 0!==i.toolbarHandlers[a]&&e.proxy(i.toolbarHandlers[a],t)(n,r,s,l),"link"!==a&&"reference-link"!==a&&"image"!==a&&"code-block"!==a&&"preformatted-text"!==a&&"watch"!==a&&"preview"!==a&&"search"!==a&&"fullscreen"!==a&&"info"!==a&&n.focus(),!1}),this},createDialog:function(t){return e.proxy(r.createDialog,this)(t)},createInfoDialog:function(){var e=this,t=this.editor,i=this.classPrefix,o=['<div class="'+i+"dialog "+i+'dialog-info" style="">','<div class="'+i+'dialog-container">','<h1><i class="editormd-logo editormd-logo-lg editormd-logo-color"></i> '+r.title+"<small>v"+r.version+"</small></h1>","<p>"+this.lang.description+"</p>",'<p style="margin: 10px 0 20px 0;"><a href="'+r.homePage+'" target="_blank">'+r.homePage+' <i class="fa fa-external-link"></i></a></p>','<p style="font-size: 0.85em;">Copyright &copy; 2015 <a href="https://github.com/pandao" target="_blank" class="hover-link">Pandao</a>, The <a href="https://github.com/pandao/editor.md/blob/master/LICENSE" target="_blank" class="hover-link">MIT</a> License.</p>',"</div>",'<a href="javascript:;" class="fa fa-close '+i+'dialog-close"></a>',"</div>"].join("\n");t.append(o);var a=this.infoDialog=t.children("."+i+"dialog-info");return a.find("."+i+"dialog-close").bind(r.mouseOrTouch("click","touchend"),function(){e.hideInfoDialog()}),a.css("border",r.isIE8?"1px solid #ddd":"").css("z-index",r.dialogZindex).show(),this.infoDialogPosition(),this},infoDialogPosition:function(){var t=this.infoDialog,i=function(){t.css({top:(e(window).height()-t.height())/2+"px",left:(e(window).width()-t.width())/2+"px"})};return i(),e(window).resize(i),this},showInfoDialog:function(){e("html,body").css("overflow-x","hidden");var t=this.editor,i=o,a=this.infoDialog=t.children("."+this.classPrefix+"dialog-info");return 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