Added support for client's interface translation.
Fixed headings in translation docs.
Small translation docs adjustments.
String adjustments.
Added gettext() for sign in message.
Added messages.pot into repository.
Added translation support for AR stuff.
Removed unused strings from messages.pot
"Email"!
Grammar.
Moved database creation stuff from shell scripts into manage.py
Fixes for Linux.
Restored virtualenv creation script.
Added language column for review.
More grammar.
Added test for language stuff.
Merge branch 'l10n'
Merge branch 'setup'
Merge branch 'i18n'