Pontoon: Update Slovak (sk) localization of AMO
Pontoon: Update Slovak (sk) localization of AMO

Localization authors:
- dilinges <dilinges@gmail.com>
- Juraj Cigáň <kusavica@gmail.com>

diox/olympia,diox/olympia,bqbn/addons-server,wagnerand/addons-server,mozilla/addons-server,mozilla/addons-server,wagnerand/addons-server,mozilla/olympia,wagnerand/addons-server,diox/olympia,bqbn/addons-server,mozilla/olympia,eviljeff/olympia,mozilla/olympia,mozilla/addons-server,bqbn/addons-server,mozilla/olympia,eviljeff/olympia,diox/olympia,eviljeff/olympia,bqbn/addons-server,mozilla/addons-server,eviljeff/olympia,wagnerand/addons-server