Passed test 1 for getSnapshot() to sort tasks by date.
Merge branch 'master' of https://github.com/cs2103aug2014-w09-1j/main

Conflicts:
	src/mytasks/logic/MemorySnapshotHandler.java
Passed test 2 for getSnapshot()
Failed test 3 for getSnapshot(). Unable to handle task with two dates(from ... to ...).