0.12.8dev: Use Travis container-based infrastructure. Refs #12200.
0.12.8dev: Use Travis container-based infrastructure. Refs #12200.


git-svn-id: 7bda06b145a4a8e9a7f4be07d7c3eb82923a12d6@14309 af82e41b-90c4-0310-8c96-b1721e28e2e2

walty8/trac,walty8/trac,walty8/trac,walty8/trac