fix install when the 'cached-reinstall' parameter is missing from python-brlcad.cfg
fix small _bindings/ caching problems
Add ASCII-art docs to ARB8 primitive
added Vector methods: wrap, has_norm, is_parallel_to
WDB.ls accepts now glob-like <pattern> parameter
added ascii-art docs to plane.py
added Arc and Triangle objects to vmath package
enhance ascii-art docs in plane.py
added reflex_angle parameter and related calculations
refactoring: extract GeometryObject base class in order to reuse it in further subclasses
cosmetic/documentation changes
fix/use getattr default value
comment out debug logging
rename Plane.from_values to Plane.wrap; documentation fixes in plane.py;
refactor: make Segment a subclass of GeometryObject
added test_segment.py
Merge pull request #28 from ncsaba/master

added Arc to vmath; small fixes; extend documentation;