relax SVN archive

Partial update of the CHANGES file for relax 4.0.0.

This consists of only the recent changes in the trunk, all of the branch changes are yet to be
added.

Added the relax 4.0.0 manual to the repository.

Updated the version number to relax 4.0.0.

relax version 4.0.0.

This is a major feature release for a new analysis type labelled 'frame order'. The frame order
theory aims to unify all rotational molecular physics data sources via a single mechanical model.
It is a bridging physics theory for rigid body motions based on the statistical mechanical ordering
of reference frames. Its current implementation is for analysing RDC and PCS data from an internal
alignment to interpret domain or other rigid body motions within a molecule or molecular complex.

Changes to the introduction of the frame order theory chapter of the manual.

Added Python 3.5 to the Python multiversion test suite script.

Added Python 3.5 to the manual C module compilation script.

Fix for the numpy version number checking in the dep_check module.

The version_comparison() function is now being used to compare numbers, replacing the previous hack.

Partly reverted r28010 - some Mac OS X testing changes were accidentally committed.

The command used was:
svn merge -r28010:28009 test_suite/gui_tests/base_classes.py

Cosmetic bug fix for the running of the test suite in the GUI.

The list of skipped tests in the status object was not being reinitialised for each run of the test
suite. This only affects the GUI where the tests can be run multiple times. The result was that
the list of skipped tests was always being printed out, even if no tests were skipped.