relax SVN archive

Small syntax fix in the release checklist document.

The relax HTML user manual footer has been modified to remove the name of the person who compiled it.

This is for http://www.nmr-relax.com/manual/index.html, and now contains links for relax
(http://www.nmr-relax.com), the manual (http://www.nmr-relax.com/manual) and the PDF version of the
manual (http://download.gna.org/relax/manual/relax.pdf).

Updated the HTML version of the user manual to relax version 2.1.2.

This is for http://www.nmr-relax.com/manual/index.html.

Another attempt at fixing the scons failure in MS Windows due to scipy and ctypes killing each other.

Scons fix for MS Windows.

A bug was introduced back at r17786 which causes scons to fail on MS Windows. This has to do with
the ctypes.Structure object but strangely led to a AttributeError importing scipy when initialising
scons.

Updated the API documentation to relax version 2.1.2.

Started to update the download webpage for relax 2.1.2 (http://www.nmr-relax.com/download.html).

Added the PDF version of the relax 2.1.2 manual to the repository.

Updated the version number to 2.1.2.

Merged the relax version 2.1.2 CHANGES file back to trunk.

The command used was:
svn merge -r17904:17905 svn+ssh://bugman@.../svn/relax/tags/2.1.2 .