Module#pathize and #methodize

[rubyworks]

Consider if these work as they should. Currently camelcase becomes snakecase and module separators become double undescores __. This insures the names can be converted in either direction, but perhaps that isn't necessary?

[ioquatix]

Looks like this has already been fixed. Module separator :: became / for directory separator. Vote to close.

[ioquatix]

@trans