Update changelog_release.xml
fix #3521: GPS would stay on after a cache list refresh

The previous fix for #3521 was incomplete and only reduced the time
window during which the GPS could be turned on in a race condition
(4c5ef68f45a2b35537b89f857c1aa9fcb117ae83).

This one prevents the GPS from being turned on again when the
activity is paused (which includes a dead activity as well if
the user has left).
Merge branch 'release' into upstream
Version info
Merge branch 'release' into upstream
Use RxJava for status updates rather than own observers
Use RxJava for direction and geodata updates rather than own observers
Remove now unused classes
Emit parallel queries to connectors when searching