customize concurrent JOBS per compiler/platform
Merge branch 'master' of github.com:mapbox/mapbox-gl-native into jobs
remove -lboost_regex from linker flags, followup to #521
Merge pull request #524 from mapbox/jobs

Jobs
attemp to fix #525
double JOBS
remove distclean (now that we've ported to mason and re-installs are fast)
remove distclean mention in the readme
aeroway_fill - ensure we fill polygons only
Merge branch 'master' into platform-image

Conflicts:
	gyp/install.gypi
use -lpthread instead of -pthread
fix image y reversal