Can install_twisted_reactor() outside of App.build
Deeper uninstall of Twisted Reactor
Allow cycles of install/uninstall of Twisted Reactor
Oops: forgot to be public about the new entry
Better docs on uninstall_twisted_reactor()
Clean unused import
Updated versionadded:: to 1.8.1
Merge branch 'master' into twisted-reactor-install-uninstall

Conflicts:
	kivy/support.py
Merge pull request #1805 from alanjds/twisted-reactor-install-uninstall

Multiple cycles of install/uninstall of Twisted Reactor