Tarbell

Adds support for Python 3, with many thanks to myersjustinc.

This should still be entirely backwards compatible, so we're keeping it to a patch version bump.

Blueprints no longer need to use a branch that matches the current version of Tarbell, meaning you can use a `master` branch (or something else).

Custom template types: Add `TEMPLATE_TYPES` setting (a list, tuple, set or other iterable) to `tarbell_config.py` to render new file types with Jinja. Use mimetypes like `text/plain`. In addition, all template-related code now lives in `tarbell/template.py`.

Lots of bug fixes and documentation updates.

Identical to 1.0.2 except for version number due to problem with PyPI.

Integrates Frozen-Flask and fixes major S3 bug.

See the 1.0.2 release announcement at https://groups.google.com/forum/!topic/tarbell-project/GKIA4wnh4FM

Integrate Frozen-Flask and fix major S3 bug. See release announcement at https://groups.google.com/forum/!topic/tarbell-project/GKIA4wnh4FM

Handle unicode directory and file names, respect underscores in sheetnames, fix date formatting. See release announcement at https://groups.google.com/forum/!topic/tarbell-project/lKTIVUgf1hg

First stable Tarbell release.