Show locale date in Extension Manager
Adds 'Brackets Homepage' entry to help menu

as requested by issue #7579.
Remove "/index.html" from homepage-url.
German translation
Fix UpdateNotification.Locale Fallback tests
Merge pull request #7813 from SAPlayer/german-translation

German translation
Merge pull request #7819 from SAPlayer/update-notification-test

Fix UpdateNotification.Locale Fallback tests
Merge remote-tracking branch 'origin/release'
Merge pull request #7746 from BerndSchwarzenbacher/issue-#7579

Adds 'Brackets Homepage' entry to help menu
Merge pull request #7745 from SAPlayer/extman-locale-date

Show locale date in Extension Manager