fix handling of when and for which app the compiler+binutils-gold is updated
upgrade compiler for osrm
back to building mapnik
prefer upgraded clang
Don't build tests for luabind

saves approx. 5 minutes
Use new repo URL, remove unneeded linker flag
Merge pull request #175 from DennisOSRM/master

Updates for OSRM builds
remove debian-nightlies folder - refs mapnik/debian#1
Add missing pixman patch
update
enable topojson + pgraster plugins
fix CC and CXX inheritance
further simplify tarball naming
only build topojson if we can
JOBS=4 for travis
fix upgrade of clang package
better precise check [skip ci]
travis: limit JOBS for protobuf as well to more reliably dodge oom killer
Turn parallel mode of for stxxl

_should_ fix issues with compiling node-osrm on travis.
upgrade harfbuzz 0.9.34->0.9.35