14 Apr 2015 - Bugfix And Translation Updates

Fixed issue #144 in mobile UI - latest positions of devices were loaded inconsistently (device marker disappeared from time to time). Also fixed couple of minor issues:

• ‘radius’ field was enabled when editing polygon geo-fence while it does not make sens for this type of geo-fences.
• device selection by clicking on latest position on map was not working

Github user maxlife70 kindly updated italian translation and another github user antoniopaisfernandes updated portuguese translation as well. Thanks for your contributions!