Pontoon: Updated Serbian (sr) localization of Marketplace
Pontoon: Updated Serbian (sr) localization of Marketplace

Translation authors:
- Vanja Tumbas <tumbas93@gmail.com>

jasonthomas/zamboni,mozilla/zamboni,ingenioustechie/zamboni,washort/zamboni,ddurst/zamboni,ingenioustechie/zamboni,mozilla/zamboni,mozilla/zamboni,ddurst/zamboni,diox/zamboni,diox/zamboni,ingenioustechie/zamboni,diox/zamboni,jasonthomas/zamboni,diox/zamboni,jasonthomas/zamboni,washort/zamboni,ddurst/zamboni,mozilla/zamboni,ingenioustechie/zamboni,ddurst/zamboni,washort/zamboni,washort/zamboni,jasonthomas/zamboni