Nicer form for adding new translation

Signed-off-by: Michal Čihař <michal@cihar.com>
Improve history formatting;

Signed-off-by: Michal Čihař <michal@cihar.com>
Consistent title for changes browsing

Signed-off-by: Michal Čihař <michal@cihar.com>
Paginator for changes browsing

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