OkMap 15.4

What new:
New map context menu: Generate.
New map context menu: Coordinates - Show compass.
File Manager: Added project management menu and load web map menu.
Distance/area/route box: Added descriptions of values.
New acceleration keys: Alt+F => "File - File Manager" and Alt+B => "Navigate - GPS Communication".
FIX: Space reorganization in the Map tiling function to be able to operate even with low resolution screens.
FIX: Route Display: Route segments are displayed even if all waypoints are off the map.
FIX: Distance/area/route: Wrong representation of the inverse azimuth in radians.
FIX: Use of arrows when distance/area/route box is displayed.
FIX: Increased the precision in the rotation of the map icons.