Remove fallback related code from backend interface.
Replace all ' with " for code coherence.
Add per client ignore exception option.
Add new documentation using asciidoc
Add doc build script.
Remove autogenerated doc.
Add copy static files to build-docs script.
Add minor fix on build docs script.
Update documentation url on readme.
Put next versio on setup.py.
Add warning deprecation on old docs.
client: default: allow setting negative timeouts

Django tests now expect negative timeouts to be accepted
and act as removal of cache.
See django/contrib/sessions/tests.py — SessionTestsMixin.test_actual_expiry
It seems logical to allow negative timeouts since redis supports them.

To avoid using the overhead of set+expire in a pipeline we just delete the key.
tests: update test_setnx_timeout to actually test value being persistent in cache
Merge pull request #61 from teferi/master

Allow setting negative timeouts
delete now returns number of deleted keys instead of None

It might be usefull to allow app to know whether the key was actually deleted
or it was not in the DB. Redis does this by returning the number of keys deleted.
django-redis could mimic that behaviour without
breaking any existing functionality.
tests: test_timeout_negative: also test that key can be expired without being in the db.
Merge pull request #62 from teferi/master

.delete returning number of deleted items instead of None.
Fixed typo

Replacing "simples" by "simplest".
Merge pull request #64 from mauricioabreu/master

Fixed typo
Add scripts for manual testing over unix sockets.