added bluetooth device selection screen.
fixed missing style.
removed unnecessary bluetooth device selection activity. the dialog is now displayed by invoking a dialog fragment from SuperActivity.
merged with latest from upstream/master.
fix bug causing the dialog to terminate the activity on device selection.
added string resources for the bluetooth device selection screen.
Merge pull request #598 from ne0fhyk/feature_bluetooth_device_selection_screen

Bluetooth device selection screen
Merge branch 'master' into typos