relax SVN archive

svn+ssh://bugman@.../svn/relax/trunk

........
r24396 | bugman | 2014-07-02 09:50:36 +0200 (Wed, 02 Jul 2014) | 6 lines

Python 3 fixes for the entire codebase using the 2to3 script.

The command used was:
2to3 -j 4 -w -f xrange .
........
r24399 | bugman | 2014-07-02 11:46:40 +0200 (Wed, 02 Jul 2014) | 5 lines

The internal structural object add_molecule() and has_molecule() methods are now model specific.

This allows for finer control of structural object.
........