Update the list of possible llvm-config binaries
Update the list of possible llvm-config binaries

This commit syncs the list with gnome-builder, which updates its list
in https://bugzilla.gnome.org/show_bug.cgi?id=782296.

llvm-config40 is added becaue LLVM 4.0 becomes a stable release.
llvm-config-5.0 is added to the bottom of the list because it is still
a development snapshot (svn trunk).

jeandet/meson,becm/meson,jpakkane/meson,mesonbuild/meson,trhd/meson,ernestask/meson,pexip/meson,jpakkane/meson,fmuellner/meson,aaronp24/meson,jeandet/meson,QuLogic/meson,mesonbuild/meson,thiblahute/meson,wberrier/meson,thiblahute/meson,fmuellner/meson,mesonbuild/meson,fmuellner/meson,wberrier/meson,QuLogic/meson,becm/meson,jeandet/meson,becm/meson,QuLogic/meson,jeandet/meson,fmuellner/meson,ernestask/meson,ernestask/meson,pexip/meson,QuLogic/meson,aaronp24/meson,jeandet/meson,MathieuDuponchelle/meson,fmuellner/meson,mesonbuild/meson,trhd/meson,aaronp24/meson,trhd/meson,ernestask/meson,fmuellner/meson,thiblahute/meson,aaronp24/meson,aaronp24/meson,MathieuDuponchelle/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,becm/meson,ernestask/meson,pexip/meson,trhd/meson,thiblahute/meson,QuLogic/meson,wberrier/meson,trhd/meson,wberrier/meson,trhd/meson,QuLogic/meson,becm/meson,MathieuDuponchelle/meson,mesonbuild/meson,becm/meson,MathieuDuponchelle/meson,aaronp24/meson,thiblahute/meson,thiblahute/meson,trhd/meson,wberrier/meson,jpakkane/meson,mesonbuild/meson,jeandet/meson,jpakkane/meson,jpakkane/meson,pexip/meson,QuLogic/meson,QuLogic/meson,fmuellner/meson,trhd/meson,jeandet/meson,thiblahute/meson,wberrier/meson,ernestask/meson,pexip/meson,jeandet/meson,MathieuDuponchelle/meson,ernestask/meson,pexip/meson,pexip/meson,becm/meson,jeandet/meson,pexip/meson,MathieuDuponchelle/meson,fmuellner/meson,pexip/meson,wberrier/meson,aaronp24/meson,wberrier/meson,jpakkane/meson,mesonbuild/meson,jpakkane/meson,MathieuDuponchelle/meson,becm/meson,ernestask/meson,aaronp24/meson,QuLogic/meson,ernestask/meson,MathieuDuponchelle/meson,thiblahute/meson,thiblahute/meson,pexip/meson,becm/meson,aaronp24/meson,MathieuDuponchelle/meson,fmuellner/meson,becm/meson,trhd/meson,mesonbuild/meson,jpakkane/meson