relax SVN archive

Fix for a bug introduced at r16453.

The structure.vectors user function will now store single vectors as a 3D, rank-1 array. In some
cases this was being stored as a list of 3D, rank-1 arrays which was then failing in with the
RelaxMultipleVectorError in the model-free code.

The model-free minimisation is now checking for multiple vectors per spin, and raises a RelaxError.

This is in response to James Nyirenda's <jamesn7414 att yahoo dott com> post at
https://mail.gna.org/public/relax-users/2012-05/msg00023.html (Message-id:
<1337916876.99384.YahooMailNeo@...>).

The RelaxMultiVectorError has been modified to accept a spin ID. This error is now raised if
multiple vectors exist per spin, as model-free analysis cannot handle this.

A small change for the structure.vectors print out.

Made the bond vector extraction print out from structure.vectors more informative.

This is in response to James Nyirenda's <jamesn7414 att yahoo dott com> post at
https://mail.gna.org/public/relax-users/2012-05/msg00023.html (Message-id:
<1337916876.99384.YahooMailNeo@...>).

The number of vectors extracted is now being printed out.

The jw_mapping system tests are now run as GUI tests.

Mac OS X bug fix for the non-read only ComboBox GUI input elements.

This is for the Value and Combo_list GUI input elements. The problem was two-fold. First the
convert_to_gui() call was required to convert the value to a unicode string, as a normal string will
be not be set via the ComboBox.SetValue() method. Secondly old selections need to be turned off.
On other operating systems, the SetValue() call will reset this - but not on Macs!!! Grrrrr......

The user function intro string echoing has been turned back on for the GUI.

The removal of the need for the prompt UI interface for the GUI user functions removed the intro
print outs. These have been reimplemented within the GUI code now.

Renamed the status.prompt_intro flag to status.uf_intro.

This is because the flag will be used in all UIs.

Mac OS X bug fixes for the GUI ComboBox input elements.

The ComboBox.GetClientData() method on Mac OS X fails if the ComboBox.GetSelection() method returns
-1 (or wx.NOT_FOUND).

Another fix for the test_write_protein_sequence unit test.

The wrong md5 sum for the file was being used.