Implements #17, Reload reCAPTCHA

Took layout and ideas raised by @culmor30
Moved reCAPTCHA key and challenge retrieval to the RecaptchaReceiver
Added slovenian translation - with fixes, squashed commit
Merge pull request #3048 from jeancaffou/master

Added Slovenian translations
Slovenian translation - fixed lint warnings and missing translations
Fixes #2918, Restore debug info for live map

Added url propagation to Viewport search in connector factory
Tuned debug info
Merge remote-tracking branch 'jeancaffou/master'
Slovenian - small post-merge fix
fix #3050 - progress for export field notes increases for every cache
Merge pull request #3056 from marco-jacob/fixProgressExportFieldNotes

fix #3050 - progress for export field notes increases for every cache
[DONT MERGE] crowdin: New translations