Version 2.60 released

A new version with many new features has been released.
-Main menu buttons replaced by sliding views
-New setting for prefered longitude/latitude format
-Graphical layline feature, when navigating towards waypoints
-Input for jibe angle, for downwind laylines
-Create temporare waypoint by bearing/distance
-Create simple routes of a series of waypoints
-Settings for auto advancing to next waypoint when navigating a route
-Support for UDP packets when connected to NMEA devices