start timing and end timing are removed due to incorrect naming
Merge branch 'master' of https://github.com/cs2103aug2014-w09-2j/main

Conflicts:
	JOYTZ/src/GUIExtraHelp.java
handleUpdateCommand, handleSearchCommand and handleSortCommand in class Analyzer will now be able to check the validity of the user input time and return executableCommand with error message if its invalid
Merge branch 'master' of https://github.com/cs2103aug2014-w09-2j/main