Fixed program ref counting issue.
Fixed program ref counting issue.

Synxis/bgfx,mendsley/bgfx,LWJGL-CI/bgfx,jpcy/bgfx,mmicko/bgfx,bkaradzic/bgfx,Synxis/bgfx,MikePopoloski/bgfx,LWJGL-CI/bgfx,mendsley/bgfx,fluffyfreak/bgfx,mendsley/bgfx,jpcy/bgfx,emoon/bgfx,septag/bgfx,septag/bgfx,jpcy/bgfx,bkaradzic/bgfx,mmicko/bgfx,Synxis/bgfx,bkaradzic/bgfx,LWJGL-CI/bgfx,septag/bgfx,jdryg/bgfx,attilaz/bgfx,emoon/bgfx,emoon/bgfx,attilaz/bgfx,jpcy/bgfx,jdryg/bgfx,MikePopoloski/bgfx,attilaz/bgfx,MikePopoloski/bgfx,LWJGL-CI/bgfx,jdryg/bgfx,fluffyfreak/bgfx,fluffyfreak/bgfx,jdryg/bgfx,fluffyfreak/bgfx,bkaradzic/bgfx,mmicko/bgfx