Update SettingsGeneralActivity.java

Correct typo: checkPreffered -> checkPreferred
Update OsmandApplication.java

Correct typo: preffered -> preferred and checkPreffered -> checkPreferred
Add strings
Add navigate buttons
Update README.md

Fix Unicode: Cura�ao -> Curaçao
Update AUTHORS

Android is perfectly capable of Unicode, so let’s use it properly.
Description of Harry’s contributions had weird grammar.
Update LICENSE

Minor corrections, mostly overused space characters.
Update LICENSE
Start and stop stage
fix bug wqith wrong help button captions in some languages
Translated using Weblate (Danish)

Currently translated at 100.0% (1474 of 1474 strings)
Translated using Weblate (German)

Currently translated at 99.3% (1465 of 1474 strings)
Translated using Weblate (Japanese)

Currently translated at 94.6% (1395 of 1474 strings)
Translated using Weblate (Korean)

Currently translated at 100.0% (1474 of 1474 strings)
Translated using Weblate (Polish)

Currently translated at 100.0% (1474 of 1474 strings)
Translated using Weblate (Sardinian)

Currently translated at 55.9% (825 of 1474 strings)
Translated using Weblate (Slovenian)

Currently translated at 100.0% (1474 of 1474 strings)
Translated using Weblate (Swedish)

Currently translated at 99.3% (1465 of 1474 strings)
Translated using Weblate (Traditional Chinese)

Currently translated at 100.0% (1474 of 1474 strings)
Merge remote-tracking branch 'origin/master'