change the way FileHandler retrieve tasks from the file.
Merge branch 'master' of https://github.com/cs2103aug2014-t17-2J/main
set initial observable list to today tasks
Merge branch 'master' of https://github.com/cs2103aug2014-t17-2J/main
Merge branch 'master' of https://github.com/cs2103aug2014-t17-2J/main
removed unnecessary "print" check
Merge branch 'master' of https://github.com/cs2103aug2014-t17-2J/main