添加了gtask中多处注释

app/src/main/java/net/micode/notes/gtask/exception/ActionFailureException.java

@@ -16,8 +16,11 @@
 
 package net.micode.notes.gtask.exception;
 
+/**
+ * 支持便签运行时的异常处理
+ */
 public class ActionFailureException extends RuntimeException {
-    private static final long serialVersionUID = 4425249765923293627L;
+    private static final long serialVersionUID = 4425249765923293627L;//serialVersionUID用于版本控制
 
     public ActionFailureException() {
         super();

app/src/main/java/net/micode/notes/gtask/exception/NetworkFailureException.java

@@ -16,6 +16,9 @@
 
 package net.micode.notes.gtask.exception;
 
+/**
+ * 支持网络错误时的异常处理
+ */
 public class NetworkFailureException extends Exception {
     private static final long serialVersionUID = 2107610287180234136L;