relax SVN archive

Modified the unit test name for testing the correct return of the relaxation time periods.

Regarding bug #21665, (https://gna.org/bugs/?21665) - Running a CPMG analysis with two fields at two delay times.

Grammar corrections - changed the 'eg.' abbreviation to 'e.g.' in a couple of places.

Implemented unit test for catching the correct return of loop_exp_frq_offset_point_time.

Regarding bug #21665, (https://gna.org/bugs/?21665) - Running a CPMG analysis with two fields at two delay times.

The docstring fetching script for the manual now formats lists as in commit r22212.

Reformatting of all of the LaTeX code for the itemize and description lists in the relax manual.

This is to regularise the LaTeX code throughout the *.tex files of the manual. All items are now
indented for easier viewing. And leading empty lines before the lists have all been removed.

Reformatting of all of the LaTeX code for the figures in the relax manual.

This is related to commit r22210. The aim is to have as many parts as possible on separate lines to
allow for better control of changes in the subversion repository and for improved usage of command
line tools.

Complete reformatting of the base LaTeX files.

The paragraph structure has been changed so that each sentence now starts on a new line. This is
for better tracking of changes (via 'svn diff' for example), for better searchability of certain
text elements using command line tools such as 'grep', and for easier easier use of the 'sed' tool.
The change tracking is most important as it allows for finer granularity - a small change will now
only be shown as a change in one sentence rather than the whole paragraph, allowing the change to be
identified more easily. It also allows for easier commit maintenance.

Created two new LaTeX commands for improving the layout of Python code in the relax manual.

These are \pysep and \pyus which will be used to format the Python module separator character and
the Python underscore character respectively. They are used in the \module{}, \pycode{}, etc.
commands to add the '.\linebreak[0]' and '\_\linebreak[0]' text to allow for improved and consistent
line breaking.

Added the infrastructure for the unit tests of the specific_analyses.relax_disp.disp_data module.

This is in response to the post http://thread.gmane.org/gmane.science.nmr.relax.scm/19963/focus=5046
by Troels, and is described in my response at
http://thread.gmane.org/gmane.science.nmr.relax.scm/19963/focus=5048.

Updated the specific_analyses.relax_disp package __all__ list.

This was identified in the previously committed unit test.