Merge pull request #12 from mortardata/cmiller-refactor

[#66445842] Refactor to extract mortar-pipeline-specific code to a new location.
Copyright changes.
For travis integration
Add Travis badge
Merge branch 'master' of github.com:mortardata/mortar-luigi into cmiller-refactor
Split up test requirements; don't use python 2.6 for travis-ci.