Update version info in manifest
Merge branch 'dev'

Conflicts:
	GreekReference/src/main/AndroidManifest.xml
Merge branch 'dev'
Update manifest and readme for v0.5.0
Merge branch 'dev'

Conflicts:
	GreekReference/src/main/AndroidManifest.xml
Update readme
Fix a couple of links in the readme
Update readme

Adds a link to the app on the Google Play store.
Add <supports-screens> element to manifest