relax SVN archive

Added the relax version 3.0.1 user manual to the repository.

Updated the version number to 3.0.1.

Backported the relax 3.0.1 CHANGES file addition to trunk.

The command used was:
svn merge -r21160:21161 svn+ssh://bugman@.../svn/relax/tags/3.0.1 .

Updated the CHANGES document for relax version 3.0.1.

relax version 3.0.1.

This is a minor feature and bugfix release.

Fix for a unit test of lib.linear_algebra.matrix_exponential.matrix_exponential().

This is for old numpy versions.

A large number of fixes for the relaxation dispersion system tested needed for the fix of r21156.

The fix of r21156 changed the format of the keys by which the R2eff/R1rho data is accessed, so many
changes were required. Additionally, due to slightly better error estimates, all of the tests
using Flemming Hansen's CPMG data needed to be slightly modified.

Removed an insanely large log file from the Flemming Hansen dispersion data directories.

This is the log file for the CPMGFit analysis.

Python 3 fixes for the dispersion data key generation and the data assembly.

The specific_analyses.relax_disp.disp_data.return_param_key_from_data() function was generating
different keys for Python 2 and 3. This has been fixed. The return_r2eff_arrays() function has
also been modified to correctly check for these keys.

A number of Python 3 fixes.

The command used was:
2to3 -j 4 -w \
-f buffer \
-f idioms \
-f set_literal \
-f ws_comma \
-x except \
-x import \
-x imports \
-x long \
-x numliterals \
-x xrange \
.