MOB-2135 empty lines removed
MOB-2135 empty line added
MOB-2135 empty lines fixed
Merge pull request #2 from Wikia/feature/MOB-2135_open_chat_screen

MOB-2135 open chat screen added
Merge branch 'develop' of https://github.com/Wikia/android-chat into develop

Conflicts:
	sample/src/com/wikia/chat/sample/MainActivity.java
MOB-2141 fragment files added
MOB-2141 layout changed
MOB 2141 icon color changed
MOB 2141 sample messages deleted
MOB-2141 unnecessary files deleted
MOB-2141 fixed formatting and name convention
Merge pull request #4 from Wikia/feature/MOB-2141_chat_screen

Feature/mob 2141 chat screen
MOB-2142 libs added
MOB-2142 redudant layout deleted
MOB-2142 dialog fragment added
MOB-2142 added interfaces to communicate betweenfragments
MOB-2142 added communication between fragments, list adapter changed to BaseAdapter
MOB-2142 firebase url extracted to a constant, adding new user fixed
MOB-2142 fragments added in xml file
MOB-2142 progress dialog added