Cleaned up code for ParserTest
Yet to clear some test cases
Merge branch 'master' of https://github.com/cs2103aug2014-w09-1j/main
Fixed a bug in Task.getClone
Merge branch 'master' of https://github.com/cs2103aug2014-w09-1j/main
Fixed bugs in Parser
AddCommand now writes to extmem upon completion