Improved Defensive On MainGui
Refactor DeadlineTask Comment and Defensive Coding
Refactor EventLogger Comments and Defensive Coding
Refactor IStorage documentation
Refactor StorageHandler documentation
Refactor Task documentation and defensive coding

Renamed context to hashtag
Refactor TimedTask documentation and defensive coding
Merge branch 'master' of https://github.com/cs2103aug2014-w10-4j/main

Conflicts:
	src/chirptask/storage/StorageHandler.java