- clean up implementation of normpath.__join__, normpath.__joined__
normpath.__add__ and normpath.__iadd__: make copies when needed
(use the new normpath.copy for that)
- Remove normsubpath.__add__ and normsubpath.__iadd__: we can't
have normsubpaths with "gaps" (i.e. with a moveto in between like
the add operations of a path and a normpath do). The old add
operation on the normsubpath was indeed the same like joining.
git-svn-id: https://pyx.svn.sourceforge.net/svnroot/pyx/trunk/pyx@2032 069f4177-920e-0410-937b-c2a4a81bcd90