Remove nullified fragment manager. We need to use the one that's part of the support library.
Remove nullified fragment manager.
We need to use the one that's part of the support library.

joindin/Joind.in-android-app,lornajane/Joind.in-android-app,richsage/Joind.in-android-app,grssilva/Joind.in-android-app