relax SVN archive

Fixes for the HTML user manual (http://www.nmr-relax.com/manual/relax_user_manual.html).

The \widehat maths command in titles (which were only for LaTeX and not latex2html) was causing
latex2html to fail in the generation of certain images, causing the image numbers to no longer
match the text, resulting in all the images being mixed up!

Changed all of the maths in the HTML page titles.

The latexonly and htmlonly environments are now being used to produce different section titles.
The LaTeX version still uses the full maths, whereas the HTML version now has pure text output.

Improvements to the HTML version of the user manual.

The latex2html configuration script now allows for more maths in the HTML with the HTML_VERSION math
extension. The section numbers are now removed from the HTML pages to allow for more static pages
for the user functions which don't disappear as new user functions are added, changing the section
numbering. The title page has also been renamed to "The relax user manual" for better search engine
indexing.

Fix for the fetch_docstrings.py script.

The number of \linebreak[0] commands inserted was far too great. However there is still a problem
in that all \linebreak[0] commands are doubled. This is for the latex2html generated user manual at
http://www.nmr-relax.com/manual/relax.html.

Fix for the HTML user manual at http://www.nmr-relax.com/manual/relax.html.

The ignore_commands function is now being used to force latex2html to ignore \linebreak[0] commands.
These were previously putting the text '[0]' throughout all the HTML pages, and were especially bad
in the user function section.

Fix for the HTML user manual at http://www.nmr-relax.com/manual/relax.html.

The document splitting has been restored to a split depth of 5. This had been changed to make the
main chapters of the text more readable, but the user function document is now far, far too long and
is a massive strain on browsers, so the behaviour has been reverted.

Updated the ancient COMMITTERS which hasn't been changed in over 4 years!

The pipe editor window is no longer centred, now matching the behaviour all other windows.

All open relax windows are now closed prior to running the test suite within the GUI.

Exiting the GUI now only warns about data loss only if there is data to loose.

The relax data store is_empty() method is being used to skip the question dialog, allowing relax to
be shut quickly.