Enable C++11 toolchain.
Enable C++11 toolchain.

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