1. removed calcOrientationNorth, remove the '@Deprecated' from calcOrientation, and changed

depending functions
2. reduced precision of GPX double values (lat,lon,distance) and also of distance in json response
to configurable values. Default is 6 digits on right side of comma/point

3. intentionally blank

4. suggestion div should now be hiding when zoom buttons are clicked or markers are dragged.
marker dragging does not change focus, so the specific drag handler was changed
Additionally "cursor: pointer" is used for suggestion divs
Merge branch 'master' of https://github.com/GraphHopper/graphhopper

Conflicts (resolved):
	web/src/main/java/com/graphhopper/http/GraphHopperServlet.java
make rounding hopefully more efficient and only if toGeoJSON; query suggestions only if not a point, see #186
Merge branch 'issue_186'