Fixed the bug regarding overflow in display handler.
Merge branch 'master' of https://github.com/cs2103aug2014-T13-2J/main

# By mervynwee
# Via mervynwee
* 'master' of https://github.com/cs2103aug2014-T13-2J/main:
  Write the function determinePastPresentFuture to determine if a task has already past, is in the present, or will be in the future.

Conflicts:
	src/main/logic/DisplayHandler.java