Add android toolchain installer.
Update VS version and add Android Vars.
Merge pull request #3170 from bakercp/apothecary-core

Apothecary core
Close file descriptors and fix OpenAL issue

unloadSound() did not previously close file descriptors which would eventually lead to a crash when too many file descriptors where open (about 1000 for Raspberry Pi).

OpenAL sources must be deleted before buffers otherwise it will result in **Illegal Operation**.
ofPixels: fix iterators syntax in vs2012
Merge branch 'master' of github.com:openframeworks/openFrameworks
Merge pull request #3172 from wronex/patch-1

Close file descriptors and fix OpenAL issue
fix deprecation msg in ofShader

use iterators instead of deprecated ofBuffer line methods
Fixed numerous issues and added locking

Added thread locking, fixed getPosition, setPosition, unloadSound and proper OpenAL error fetching.
add half float gl types

adds support for 16 bit GL channels to ofGLUtils
Merge pull request #3174 from tgfrerer/fix-ofShader-deprecation-msg

fix deprecation warning in ofShader
Merge pull request #3175 from wronex/patch-2

Fixed numerous issues and added locking
Merge pull request #3176 from tgfrerer/add-half-float-gl-types

add half float gl type support to ofGLUtils
Merge branch 'master' into feature-shader-uniform-mat3