Cleaned up Audio systems, merged common headers together into a general includes
folder, and also fixed issues regarding namespace.
Removed duplicate include from Android audio and fixed iOS include.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	ENIGMAsystem/SHELL/Audio_Systems/General/ASbasic.h
	ENIGMAsystem/SHELL/Audio_Systems/OpenAL/as_basic.cpp
Whoops accidentally left a file int here from remote branch merge.
Merge pull request #260 from RobertBColton/master

Cleaned up Audio systems, merged common headers together into a general ...