Pontoon: Update Sorbian, Upper (hsb) localization of Test Pilot Website
Pontoon: Update Sorbian, Upper (hsb) localization of Test Pilot Website

Localization authors:
- Michael Wolf <milupo@sorbzilla.de>

chuckharmston/testpilot,lmorchard/testpilot,fzzzy/testpilot,lmorchard/testpilot,chuckharmston/testpilot,meandavejustice/testpilot,flodolo/testpilot,mozilla/idea-town,mozilla/idea-town-server,lmorchard/idea-town,fzzzy/testpilot,lmorchard/testpilot,lmorchard/idea-town-server,fzzzy/testpilot,chuckharmston/testpilot,meandavejustice/testpilot,flodolo/testpilot,fzzzy/testpilot,mozilla/idea-town,flodolo/testpilot,mozilla/idea-town-server,mozilla/idea-town-server,lmorchard/idea-town,chuckharmston/testpilot,mozilla/idea-town-server,lmorchard/idea-town,lmorchard/idea-town-server,lmorchard/idea-town-server,meandavejustice/testpilot,mozilla/idea-town,lmorchard/testpilot,lmorchard/idea-town-server,meandavejustice/testpilot,flodolo/testpilot,mozilla/idea-town,lmorchard/idea-town