* throw if close to zero
* fix moldraw2DTestCatch
* Fix testRGroupDecomp
* fix one test in distGeomHelpersCatch
* fix tests in distGeomHelpersCatch
* retry finding a dir vector when adding Hs
* push UFF fixes to calculateCosY
* fix the setTerminalAtomCoords deg 4 patch
* add a test
* reduce zero tolerance