added layouts
working on reply to comment layouts

Conflicts:
	GeoChan/src/ca/ualberta/cmput301w14t08/geochan/fragments/ThreadViewFragment.java
fixed crash on adding top level comment
fixed a bug where thread view elements would reorder themselves
layout for top comment replies displays correctly
added post reply fragment and refactored thread view adapter
refactored main activity to extend FragmentActivity
Imports cleanup