Copied and pasted Kash's code from text document to Java file, no other changes made. NOTE: This version of the Date class does not contain the comparable implementation
Test changes
Merge branch 'master' of https://github.com/cs2103aug2014-t7-2/main

# By Kaushik Suresh
# Via Kaushik Suresh
* 'master' of https://github.com/cs2103aug2014-t7-2/main:
  sortTask