EMI: Fix the attached actor's position coordinates.
Merge pull request #853 from JoseJX/FixActorAttach

EMI: Fix the attached actor's position when attaching two actors.
EMI: Swap actors to remove the sign when calculating the position.
ALL: synced with ScummVM
ANDROID: restore NDK version
Merge pull request #857 from JoseJX/FixActorAttach

EMI: Swap actors to remove the sign when calculating the position.
ANDROID: restore NDK version
ANDROID: Use new TGA location and namespace
EMI: Allow actors to be hidden by a call to set_wear_chore(nil).
Merge pull request #858 from JoseJX/FixCostumeHiding

EMI: Allow actors to be hidden by a call to set_wear_chore(nil).
GRIM: Correctly disable an override in the set tg. Fixes #861
GRIM: Merge iMuse and EMI sound warnings into a new "Sound" channel
MYST3: fix compiler warning
EMI: fix compiler warnings
VIDEO: fix compiler warning
CREDITS: updates
ALL: sync with ScummVM
GRAPHICS: Add OpenGL extension registry
GRAPHICS: Only use packed depth-stencil framebuffer if extensions allow it
ANDROID: Use extensions to query NPoT textures