save the thread to the pool when posting new thread to sever
Merge branch 'master' of https://github.com/CMPUT301W14T07/Team7Project
fix bug: pull all the comments of favourite comment to the cache
Merge branch 'master' of https://github.com/CMPUT301W14T07/Team7Project

Conflicts:
	Team7Project/src/ca/ualberta/team7project/controllers/ThreadListController.java