to save space and have line lengths < 79 characters; added whitespace to comments
and used the self.__repr__() method to shorten the impression to the terminal;
broke the line inside parentheses to make the line shorter; inside alignToSelection() test for faces first
to use alignToFace(), which actually works; leave alignToCurve() for later,
as it doesn't actually do anything at the moment; improved docstrings in isOrtho(),
the orthogonality is tested for u, v, and axis, on the global axis +Y only;
removed wrongly placed comment in restore() method;
improved file docstring at the top.
813338d62e