relax SVN archive

Modifying test_suite/shared_data/structures/Indol_test.xyz

This is Han's patch https://gna.org/task/download.php?file_id=13245 attached to the task
http://gna.org/task/?7404.

In the test_suite/shared_data/structures/Indol_test.xyz 0.00000 after the molecule name was removed.
The reason for that is because in a typical xyz file the second line is just the molecule name.

Fix for a variable name.

Missing import.

Missing import and fixed the initialisation of Wiz_panel.

The GUI and interpreter objects are no longer passed into Wiz_panel.

This is only for the user function specific classes, and is performed in UF_panel instead.

The value.set() GUI user function now uses the new wizard.

The dialog ShowModal() and Destroy() methods are now executed by the wizard run() method.

Modifying the user function 'read_xyz()'.

This is Han's patch https://gna.org/task/download.php?file_id=13243 attached to the task
http://gna.org/task/?7404.

In the user function generic_fns/structure/main.py a single blank line was removed.

The wizard size and title are now class arguments rather than hardcoded variables.

Created the UF_panel class derived from Wiz_panel for the user function specific wizard panels.