Fix a typo in documentation
Merge pull request #233 from Psycojoker/patch-1

Fix a typo in documentation
Added missing files to MANIFEST.in
Used unicode_literals in migrations.
Added japanese translation.
fix (1_7.W001) MIDDLEWARE_CLASSES is not set.
Added python 3.4 to tox and fixed Django 1.7 deps.
fix AttributeError: 'TaggableRel' object has no attribute 'to'
fixed field.rel.through AttributeError: 'unicode' object has no attribute '_meta'
makemigrations
Django 1.4 did not support Python 3 yet ;)
Properly serialize through/to in deconstruct.
Fixed test migrations after previous commit.
Fixed dependency to contenttypes.
Test fixes and more 1.7 fixes.
Upadted changelog and pushed version numbers.
Merge branch 'develop'