Travis: Migrate from legacy infrastructure
Travis: Migrate from legacy infrastructure

http://docs.travis-ci.com/user/migrating-from-legacy/
(cherry picked from commit bec0013)

JackGavin13/octoprint-test-not-finished,JackGavin13/octoprint-test-not-finished,Javierma/OctoPrint-TFG,leductan-nguyen/RaionPi,ryanneufeld/OctoPrint,CapnBry/OctoPrint,foosel/OctoPrint,bicephale/OctoPrint,beeverycreative/BEEweb,MoonshineSG/OctoPrint,shohei/Octoprint,bicephale/OctoPrint,nickverschoor/OctoPrint,MoonshineSG/OctoPrint,masterhou/OctoPrint,eliasbakken/OctoPrint,ryanneufeld/OctoPrint,Jaesin/OctoPrint,CapnBry/OctoPrint,Javierma/OctoPrint-TFG,Javierma/OctoPrint-TFG,Jaesin/OctoPrint,nickverschoor/OctoPrint,MoonshineSG/OctoPrint,bicephale/OctoPrint,eliasbakken/OctoPrint,Jaesin/OctoPrint,senttech/OctoPrint,shohei/Octoprint,foosel/OctoPrint,ryanneufeld/OctoPrint,shohei/Octoprint,Salandora/OctoPrint,beeverycreative/BEEweb,Jaesin/OctoPrint,MoonshineSG/OctoPrint,leductan-nguyen/RaionPi,nickverschoor/OctoPrint,leductan-nguyen/RaionPi,shohei/Octoprint,eliasbakken/OctoPrint,CapnBry/OctoPrint,beeverycreative/BEEweb,ryanneufeld/OctoPrint,Salandora/OctoPrint,bicephale/OctoPrint,leductan-nguyen/RaionPi,nickverschoor/OctoPrint,shohei/Octoprint,masterhou/OctoPrint,JackGavin13/octoprint-test-not-finished,senttech/OctoPrint,Javierma/OctoPrint-TFG,senttech/OctoPrint,foosel/OctoPrint,foosel/OctoPrint,beeverycreative/BEEweb,senttech/OctoPrint,CapnBry/OctoPrint,JackGavin13/octoprint-test-not-finished,masterhou/OctoPrint,Salandora/OctoPrint,Salandora/OctoPrint