[HORS-US] Add thread id in debug traces to be able to split opengl calls.
[US100] delete ghShader and glProgram in context destructor
[BZ126] Attempt to delete openGL ressources
[BZ126] DeleteFramebuffer first
[BZ126] Keep context current to release ressources
Merge branch 'BZ126-memory-leak' into genymotion-4.1.1_r6.1

* BZ126-memory-leak:
  [BZ126] Keep context current to release ressources
  [BZ126] DeleteFramebuffer first
  [BZ126] Attempt to delete openGL ressources
  [US100] delete ghShader and glProgram in context destructor
  [HORS-US] Add thread id in debug traces to be able to split opengl calls.

Conflicts:
	emulator/opengl/host/libs/GLESv1_dec/Android.mk
	emulator/opengl/host/libs/GLESv2_dec/Android.mk
	emulator/opengl/host/libs/libOpenglRender/Android.mk