llvm: update to 3.5.0
MesaLib: revbump for new llvm
Merge branch 'master' of https://github.com/voidlinux/xbps-packages into llvm35

Conflicts:
	srcpkgs/MesaLib/template
Merge pull request #542 from RealJohnGalt/llvm35

llvm: update to 3.5.0