Use a minimal containerized Travis build
Use a minimal containerized Travis build

These set of options should cause Travis to build using a fast-start
Docker container, which should knock off a considerable amount of time
off Travis builds.

wiremod/wire,bigdogmat/wire,NezzKryptic/Wire,garrysmodlua/wire,thegrb93/wire,Grocel/wire,dvdvideo1234/wire,sammyt291/wire