Fix #2356. Compare languages not locales
Fix #2356. Compare languages not locales

Cherry-picked from master.

Conflicts:
	main/src/cgeo/geocaching/CacheDetailActivity.java

madankb/cgeo,Bananeweizen/cgeo,auricgoldfinger/cgeo,Bananeweizen/cgeo,tobiasge/cgeo,yummy222/cgeo,madankb/cgeo,schwabe/cgeo,superspindel/cgeo,kumy/cgeo,matej116/cgeo,xiaoyanit/cgeo,tobiasge/cgeo,marco-dev/c-geo-opensource,marco-dev/c-geo-opensource,schwabe/cgeo,vishwakulkarni/cgeo,Huertix/cgeo,SammysHP/cgeo,mucek4/cgeo,S-Bartfast/cgeo,KublaikhanGeek/cgeo,madankb/cgeo,Huertix/cgeo,vishwakulkarni/cgeo,schwabe/cgeo,cgeo/cgeo,cgeo/cgeo,marco-dev/c-geo-opensource,rsudev/c-geo-opensource,kumy/cgeo,cgeo/cgeo,auricgoldfinger/cgeo,pstorch/cgeo,xiaoyanit/cgeo,rsudev/c-geo-opensource,ThibaultR/cgeo,matej116/cgeo,samueltardieu/cgeo,brok85/cgeo,mucek4/cgeo,S-Bartfast/cgeo,S-Bartfast/cgeo,lewurm/cgeo,yummy222/cgeo,KublaikhanGeek/cgeo,SammysHP/cgeo,tobiasge/cgeo,auricgoldfinger/cgeo,kumy/cgeo,samueltardieu/cgeo,SammysHP/cgeo,vishwakulkarni/cgeo,pstorch/cgeo,schwabe/cgeo,lewurm/cgeo,Huertix/cgeo,ThibaultR/cgeo,pstorch/cgeo,matej116/cgeo,brok85/cgeo,samueltardieu/cgeo,lewurm/cgeo,superspindel/cgeo,Bananeweizen/cgeo,rsudev/c-geo-opensource,xiaoyanit/cgeo,superspindel/cgeo,yummy222/cgeo,ThibaultR/cgeo,KublaikhanGeek/cgeo,brok85/cgeo,mucek4/cgeo,cgeo/cgeo