Merge pull request #22 from zkanda/master

Remove use of deprecated has_key and strip some whitespace
turn sender, recipient and parent_msg into raw_id fields

Select fields do not scale for many users/messages
explicitly specify MessageAdminForm fields
don't use get_user_model() in models.py

fixes a problem with Django 1.7 and the new AppConfig system
use django.utils.timezone instead of datetime
add AppConfig for Django 1.7
update version notes
increase version to 0.5.0
remove outdated download_url
include UPGRADING in Manifest
Update sphinx config
docs are now hosted on readthedocs.org
change to python3.4 syntax
added romanian formal translation w/o diacritics
Merge pull request #26 from edu2004eu/master

added romanian formal translation w/o diacritics
minor grammar fix
Merge pull request #28 from jedijulia/patch-1

minor grammar fix in docs
Merge pull request #25 from simonsmiley/python3.4

change to python3.4 syntax
make reply_form directly available on single message view
use decorator syntax