Made REMARK 350 record parsing accept variable spacing between items,
since there are several cases of inconsistency in the PDB files
(examples: 1GR5, 1M4X).
Merge pull request #55 from pwrose/master

Made REMARK 350 record parsing accept variable spacing between items,
Adding projection methods to RotationAxis
Add rotate method to RotationAxis

Also made rotation matrix direction right handed 
(Calc.rotate uses a pre-multiply convention)