Added NVV to PickNetworkProviderActivity
added WienProvider and prepared addition of other providers
release 0.3.1
Merge branch 'master' into dev

Conflicts:
	res/xml/changelog_master.xml
make clear text buttons bigger and easier to hit on small screens
auto-completed location now also show their city in list

fixes #18
show line boxes in correct order, fixes #20
moved static methods into new LiberarioUtils class
first implementation for from GPS button functionality

(not yet complete)
also get permission to access coarse location
wait for location to be found before searching for trips
release 0.4-beta
don't save locations with no id as favorites
show place last in location autocomplete list
find departures from new home bottom with one click
if a station has a list of lines, filter out duplicates
use plus/minus for 'show more' button to hopefully be more intuitive