Updated glsl-optimizer.
Updated glsl-optimizer.

bkaradzic/bgfx,jpcy/bgfx,andr3wmac/bgfx,elmindreda/bgfx,marco-we/bgfx,LWJGL-CI/bgfx,fluffyfreak/bgfx,jdryg/bgfx,aonorin/bgfx,jdryg/bgfx,aonorin/bgfx,emoon/bgfx,jpcy/bgfx,v3n/bgfx,mendsley/bgfx,attilaz/bgfx,septag/bgfx,0-wiz-0/bgfx,kondrak/bgfx,MikePopoloski/bgfx,fluffyfreak/bgfx,marco-we/bgfx,attilaz/bgfx,mmicko/bgfx,fluffyfreak/bgfx,kondrak/bgfx,jpcy/bgfx,bkaradzic/bgfx,Synxis/bgfx,andr3wmac/bgfx,bkaradzic/bgfx,LWJGL-CI/bgfx,mendsley/bgfx,v3n/bgfx,Synxis/bgfx,jdryg/bgfx,jdryg/bgfx,jpcy/bgfx,0-wiz-0/bgfx,mmicko/bgfx,elmindreda/bgfx,elmindreda/bgfx,mendsley/bgfx,bkaradzic/bgfx,Synxis/bgfx,septag/bgfx,septag/bgfx,emoon/bgfx,andr3wmac/bgfx,v3n/bgfx,0-wiz-0/bgfx,marco-we/bgfx,mmicko/bgfx,emoon/bgfx,MikePopoloski/bgfx,LWJGL-CI/bgfx,attilaz/bgfx,kondrak/bgfx,fluffyfreak/bgfx,MikePopoloski/bgfx,LWJGL-CI/bgfx,aonorin/bgfx