version of tilejson w/ agentkeepalive 0.1.x

agentkeepalive 0.2.x is buggy
Merge pull request #20 from mapbox/agentkeepalive-0.1.x

version of tilejson w/ agentkeepalive 0.1.x
0.15.0
linux [publish binary]
Merge branch 'master' into travis-osx