Update main/src/cgeo/geocaching/connector/gc/GCConstants.java

Fixes #2499 #2500
Merge pull request #2501 from Lineflyer/release

Cache Coordinate parsing correction. Fixes #2499 #2500
Change log update

Preperation of bugfix release
Version info
fix #2518: NPE in RMapsApp
Merge remote-tracking branch 'origin/release'

Conflicts:
	main/res/values/strings.xml
	main/src/cgeo/geocaching/apps/cache/navi/RMapsApp.java