attempt to fix tests on linux
pretty print gyp files
add vtile.empty check: faster than isSolid and more understandable
upgrade to mapnik-vector-tile@0.5.4 with isSolid fixes
update changelog for v1.4.14
[publish binary]
update Mapnik SDK to 601-g5ae55a0
[publish binary]
bump to v1.4.14 [publish binary]
update
[publish binary]