relax SVN archive

Moved the systemtest of getting a file list with lib.io.get_file_list() function into unit test.

Task #7873 (https://gna.org/task/index.php?7873): Write wrapper function to nmrglue, to read .ft2 files and process them.
Homepage: http://www.nmrglue.com/
Link to nmrglue discussion: https://groups.google.com/forum/#!forum/nmrglue-discuss
The code is develop at Github: https://github.com/jjhelmus/nmrglue/
Google code: https://code.google.com/p/nmrglue/
Documentation: http://nmrglue.readthedocs.org/en/latest/index.html

Backported the relax 3.3.4 CHANGES file changes to trunk.

The command used was:
svn merge -r26923:26924 svn+ssh://bugman@.../svn/relax/tags/3.3.4 .

Updated the CHANGES file for relax 3.3.4.

Added the relax 3.3.4 manual to the repository.

Updated the version number to relax 3.3.4.

relax version 3.3.4.

This is a major feature and bugfix release, finally adding support for the saturation recovery and
inversion recovery R1 experiment, and including a bug fix for storing multi-dimensional numpy data
structures as IEEE 754 byte arrays in the XML output of the relax state and results files.

Added relax scripts which match the Frame_order.test_test_simulate_* system tests.

These are the tests of the frame_order.simulate user function. These were used to construct and
visually check the Brownian simulation and PDB model representation in a molecular viewer. These
could be a useful reference, so have been added to the repository.

Created two system tests for the frame_order.simulate user function for the double rotor model.

These are Frame_order.test_simulate_double_rotor_mode1_xz_plane_tilt and
Frame_order.test_simulate_double_rotor_mode2_xz_plane_tilt.

Created two system tests for the frame_order.simulate user function for the double rotor model.

These are Frame_order.test_simulate_double_rotor_mode1_z_axis and
Frame_order.test_simulate_double_rotor_mode2_z_axis.

Improved checking for the frame order generate_pivot() function.

The check_model() checking object is now called to make sure the frame order model has been
specified, as this is essential for this function.