Enable Biełaruskaja language

Signed-off-by: Michal Čihař <michal@cihar.com>
Workaround Django bug to work with be@latin locale

Monkey patch locales, workaround for
https://code.djangoproject.com/ticket/24063
Slighly compacten translation view

There was a bit too much of spaces around some controls.

Issue #629

Signed-off-by: Michal Čihař <michal@cihar.com>