Merge pull request #81 from enthought/feature/general-cleanup

General cleanup
Merge pull request #86 from enthought/feature/validator-cosmetics

Validator cosmetics
Make @kwmsmith's suggested edit to Undistributed.
Tweak import in test...

To make the validator more easily usable as a subtree with runnable tests.
Merge pull request #88 from enthought/redo-testing-import

Tweak import in test...
Merge pull request #83 from enthought/feature/general-comments-section

General comments section
Fix travis.
Merge pull request #89 from enthought/redo-testing-import

Fix travis.
Merge branch 'master' into feature/update-validator