Remove method for delete index
Edited parseEndTime
Added test case for end time
Edited parse start time
added test time
Merge remote-tracking branch 'origin/master' into Stanley's_Branch

Conflicts:
	src/todologApp/Task.java
added command done
Added Command Display
added display tasktype
Added dom4j-1.6.1 library
Add Storage for done status
rewrite methods for output
Merge 'Stanley's into linh-dev

Conflicts:
	src/todologApp/Task.java
Merge branch 'vani's_branch' into linh-dev
updated userinterface, mytablemodel,customrenderer
added Exception for parseStartTime and parseEndTime
Added catch and throw exception
Added exception control
Edited Test case with exception controls
Added new test case to check time