relax SVN archive

Converted a redirect to a direct link at http://www.nmr-relax.com/windows_devel.html.

This is the link for the express edition of MS Visual Studio. This was identified by the W3C link
checker (http://validator.w3.org/checklink).

Fix for the http://www.nmr-relax.com/manual/The_SCons_build_system.html link.

This is for the webpage http://www.nmr-relax.com/windows_devel.html. This was identified by the W3C
link checker (http://validator.w3.org/checklink).

Fix for a dead CTAN link at http://www.nmr-relax.com/windows_devel.html.

This was identified by the W3C link checker (http://validator.w3.org/checklink).

Converted the "Development platform setup" menu entry into a collapsible entry.

This is for all pages at http://www.nmr-relax.com.

Updated the Google search links and javascript at http://www.nmr-relax.com/communication.html.

The problems were identified by the W3C link checker (http://validator.w3.org/checklink). The
custom Google search of the relax mailing lists was a redirect which has been converted to a direct
link to https://www.google.com/cse/home?cx=000230621675959489540%3Aianvteuoucy. And the javascript
has been replaced by the newest V2 version of the custom search page.

Fixes for all of the footer links at http://www.nmr-relax.com/manual/index.html.

These problems were identified by the W3C link checker (http://validator.w3.org/checklink).

Removed the repository backup file text from the relax manual.

This is for http://www.nmr-relax.com/manual/Latest_sources_the_relax_repositories.html. The gzipped
repository dump file has not been created by Gna! for many, many years. The problem was identified
by the W3C link checker (http://validator.w3.org/checklink).

Fixes for the links at the bottom of all HTML manual pages.

This is for the automatically generated documentation at http://www.nmr-relax.com/manual/index.html,
created using latex2html. The links all require double quotes, and some a trailing '/'. The links
fixed are http://www.nmr-relax.com, http://www.nmr-relax.com/manual/ and
http://download.gna.org/relax/manual/relax.pdf.

Fix for the http://www.nmr-relax.com/windows_devel.html#MSVS_probs link at http://www.nmr-relax.com/download.html.

This was identified by the W3C link checker (http://validator.w3.org/checklink).

Removed an old wxPython link from http://www.nmr-relax.com/download.html.