Autodeploy to Pypi

Merge pull request #95 from cmaclell/fix-pypi

only publish to pypi on tag

Fixed continuous integration and DummyTree bug

Merge pull request #94 from cmaclell/fixing-travis

Fixing travis

First Travis CI automated release

This is the first release where we are using travis CI to automate the release, after this adding a new version number will automatically trigger releases.

ACS Conference Paper

This is a snapshot of the code at the time of publication of the original TRESTLE conference paper at ACS.