Align release with master for send2cgeo
Merge branch 'fix-2741' into release
#2824: comment removal of caches after GPX import
refactoring: explicitly declare no dependency to portrait mode

* advised by Android developers
* https://plus.google.com/108967384991768947849/posts/iJAZVox4kfV
refactoring: remove code duplication
refactoring: code duplication
refactoring: code duplication
new: only show streetview menu if available
refactoring: add test for process utils
refactoring: add test for loading of cache history
refactoring: remove multiple assignments in login check
refactoring: remove duplicated code for logging in
refactoring: use static modifier for tests
refactoring: extract user actions into re-usable classes
quantity zero in plurals for en deleted
Merge pull request #2909 from koem/wrongplural

quantity zero in plurals for en deleted
fix #2907: TB search broken
fix #2903: Radar named Navigate in Live map cache-menu
fix #2908: Ask for list on attachment import
refactoring: remove unused string