minor cleanups
moved all System.Drawing dependencies (conversion extensions) to single file (TODO: move to other lib?);
changed some variable names
added IsParallelTo relation for vectors
added box test with flags
corrected IsParallelTo
added forth version of FastRay3d - Box3d intersection
added additional color conversions
added extension;
update Aardvark.Base.nuspec to v1.0.4
Merge pull request #4 from vrvis/development

v1.0.4