Fix GenericCAO fails to grabing member animated mesh node to prevent it do be deleted to early
Make GUITable mouse wheel scrolling faster
Add prefixes to enum values and fix style issues
Merge remote-tracking branch 'minetest/master'

Conflicts:
	src/clientiface.cpp
	src/clientiface.h
Merge remote-tracking branch 'upstream/master' into next

Conflicts:
	src/server.cpp