Merge pull request #95 from cs2103aug2014-w15-3J/master

Merge Logic with Master
Bug in editing endDate resolved
Added more test codes to TestLogic. Debugged other codes on the way
Overwritten code recovered
Updated TestLogic
Added LIST_PRIORITY
removed isAppending
Edited TASKS_sth to LIST_sth in TickCMIManager
Modified StorageTest
Merge branch 'master' of https://github.com/cs2103aug2014-w15-3J/Ticker
Modified UndoManagerTest
use timeline to display the current time
current time display fully implemented
Merge branch 'UI'
Bug in CRUManager. storedTasksByCMI wrongly attached to
storedTasksByTicked
Added more test codes to TestLogic. Added one more if statement for
deadline task
Resolved error for missing case in isExpired previously. Committing
again
Improper changing of normal task to repeating task caused improper
printing of repeated tasks description. Resolved
got majority of testing coverage done
Added new test codes for TestLogic. Caught impropoer change of normal
task to repeating task