greatarc WIP
working EllipsoidGeodesic
Merge branch 'master' into wallGeo
scale wall to surface
fix heights
Merge branch 'master' into wallGeo
Resolves issue #969
Merge branch 'master' into wallGeo
documentation
simplify removeDuplicates, fix last position calculation
added to CHANGES.md
move constants
Merge branch 'master' into wallGeo

Conflicts:
	CHANGES.md
cleanup
result parameter
Merge branch 'master' into wallGeo
update CHANGES.md
Merge branch 'master' into wallGeo

Conflicts:
	CHANGES.md
Simplify wall geometry height calculation, correct attributes
fix tests