WIP RadiusFromDiff allow fixing from piped in diffs
FIX missing import in RadiusDiff
ENH Radius.from_diff and test
CLN refactor from_diff and py26 compat
FIX py26 from_diff
CLN update readme and help
FIX py26
DOC add to functions to readme, fix parse_args when not in vcs project
DOC small tweak to readme, for pypi rst formatting
Merge pull request #74 from hayd/from_diff

From diff