rename PositionAugmenter to MapViewCallback what it really is
use BatchPositionAugmenter for MapViewCallback#complementDescription and #complementElevation

Conflicts:
	mapview/src/main/java/slash/navigation/converter/gui/mapview/BaseMapView.java
	mapview/src/main/java/slash/navigation/converter/gui/mapview/MapView.java
	route-converter/src/main/java/slash/navigation/converter/gui/RouteConverter.java
commit after merge