relax SVN archive

Completed the CHANGES file for relax 4.0.0.

The frame_order_cleanup branch commit log has now been processed, heavily edited, and converted into
release notes.

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