implement first version of audio renderer, it needs fixes and a lot of additional work
fix sample rate missing
do u wanna hear a beep?
remove test code
write some function definitions and notes for future rework
rename Sound to Source
finish first version of ALRenderer
test code. it will be removed
implement new methods to ALRenderer, fix ALRenderer::create_buffer
ALRenderer should be const correct
add OpenSLES to LDLIBS in android make file
add AudioRenderer interface
move constants from backend to AudioRenderer
clean data structures and fix some functions
add sles to android make
Merge branch 'master' into audio

Conflicts:
	engine/Device.cpp
	engine/resource/ResourceManager.cpp
Merge branch 'master' into audio

Conflicts:
	engine/Android.mk
release AudioRenderer on shutdown
Merge branch 'filesystem-mount-points' into audio

Conflicts:
	engine/Device.h
update android make file