Compatibility methods
Change requirements for Python 3 compatibility
Remove wsgiref (not compatible, not required)
Change Flask-and-Redis in favour of Flask-Redis (latter is compatible)
Use forked version of Flask-WhooshAlchemy that has full Python 3 compatibility
Update production and default config to work with Flask-Redis settings.
_compat.max_integer instead of sys.maxint
Make helper-methods py3 compatible
_compat.max_integer instead of sys.maxint
_compat.text_type instead of unicode
Use redis_store (flask-redis) instead of redis (flask-and-redis)
Use unidecode library for slugs instead of ascii normalisation
py3 tests on travis-ci
Fix some Settings-dicts still using iteritems
Iteritems from _compat for py3 compatibility
Fix time_since filter on py3. It interprets FP numbers < 1 differently than py2 does
Merge pull request #69 from sh4nks/py3-compat

Python3 compatibility