relax SVN archive

Docstring editing of the devel_scripts/python_multiversion_test_suite.py development script.

Bug fix for the structure RMSD function for when old numpy versions are present.

Older numpy versions do not have the ddof argument for the std() standard deviation function,
therefore relax now catches this, calculates the biased standard deviation formula, and then
multiplies the value by a correction factor to obtain the non-biased estimator.

Fixes for the unit test __all__ list checking for the lib package for the Mac OS X application.

For some reason the py2app extension which creates the app merges the Python installation directory
Resources/lib/python2.7 and the relax lib package into Resources/lib. Now 'python2.7' is
blacklisted when checking the lib package so that the parasitic Python install location is ignored.

Fixes for the unit test package __all__ list checking.

Now only *.py files and directories are checked. In some cases other files could be present in
the packages, for example the object files when compiling the C modules. These would cause the unit
tests to fail unnecessarily.

Fix for the system tests in the Mac OS X application binary.

The Mf.test_bug_20563_missing_ri_error system test fails in the Mac OS X application binary. The
problem is that the py2app extension used to build the Mac application decides that empty
directories are not to be included in the app, so naturally the test fails when checking for these.
Now empty results files have been added to these directories to trick py2app to include them.

Updated the news links on http://www.nmr-relax.com/download.html for relax version 2.2.3.

Updated the relax API documentation at http://www.nmr-relax.com/api/ to version 2.2.3.

Updated the relax HTML manual at http://www.nmr-relax.com/manual to version 2.2.3.

Updated the http://www.nmr-relax.com/download.html webpage for relax version 2.2.3.

Hopefully the last set of fixes for the minfx and bmrblib instructions for the release checklist.

These are the packages bundled with relax (http://gna.org/projects/minfx/ and
http://gna.org/projects/bmrblib/).