fix some error

Conflicts:
	java/ntut/csie/ezScrum/restful/mobile/controller/TaskWebServiceController.java
	java/ntut/csie/ezScrum/web/action/plan/AjaxShowStoryFromSprintAction.java
	java/ntut/csie/ezScrum/web/action/plan/RemoveSprintPlanAction.java

Conflicts:
	java/ntut/csie/ezScrum/web/action/report/AjaxGetTaskBoardStoryTaskListByGuest.java
	java/ntut/csie/ezScrum/web/action/report/GetSprintInfoForTaskBoardAction.java
fix some error