Changed a few lines of code
Merge branch 'master' of https://github.com/cs2103aug2014-t7-2/main

# By Kaushik Suresh (1) and Natalie Rawle (1)
# Via Natalie Rawle
* 'master' of https://github.com/cs2103aug2014-t7-2/main:
  Fixed a bug where contains was being called to compare a Subcommand TYPE to a Subcommand instead of the method which locates the right subcommand type.
  Changed equals(Task A)