relax SVN archive

Updated the relax_data.read() back end for the new ID string based design.

The update_data_structures_pipe() and data_init() functions have been deleted and the pack_data()
function highly modified.

Modified the value.set() user function GUI element so that the parameter element is an input field.

Redesigned the relax_data.read() user function front end for handling data ID strings.

Initialized merge tracking via "svnmerge" with revisions "1-12644" from
svn+ssh://bugman@.../svn/relax/1.3

Creating a branch for redesigning how relaxation data is handled in the model-free data pipes.

This change is related to the task #6397 (https://gna.org/task/?6397)

kada _at_ chemi _dot_ muni _dot_ cz

https://mail.gna.org/public/relax-devel/2011-03/msg00001.html
https://gna.org/task/download.php?file_id=12603

This patch includes change in the functions calc_(d,d2)noe in a file maths_fns/ri.py, where
(d,d2)ri_prime was renamed to (d,d2)ri. This patch covers also the related change of names in the
function init_res_r1_data (class Mf, maths_fns/mf.py), where the variables are initialized.

Created an initial value.set() user function GUI element and menu entry.

The value wizard graphic is again the wrong size!!!

Improvements to the value user function wizard graphic - the tensor background has been deleted.

The value user function wizard graphic is now the correct size.