Adding a requirements.txt file.

This will be used to control development dependencies.
Refactoring hard-coded constant to be nicer.
Adding travis CI script.
Commenting out doc tests, since we don't have those yet.
Adding a python setup.py test command.
Adding pytest-xdist for development.

This allows us to run our slow tests in parallel.
Adding tests for our manager.
Removing xdist.

Amazon apparently hates too many create tables concurrently, so might as well do
is slowly.
Removing xdist stuff.
Adding all dependencies to requirements.txt.

This allows us to make development dependencies simpler.
Removing 2.6 support.
Flask requires python 3.3+
Boto doesn't support python 3 :(
Adding Sphinx.
Adding sphinx docs (skeleton).
Adding autodoc/viewcode.
Including version automatically.
Adding themes.
Adding flask Sphinx theme.
Fixing import.