relax SVN archive

Removed some duplicated text in the frame order models chapter of the manual.

This is duplicated from the frame order analysis chapter.

Avoided a doubly defined label in the manual.

Added some images missing from the frame order chapter of the manual.

Reference fix in the frame order chapter of the manual.

Removed lots of useless comments about book references.

Removed many unnecessary references to relax.

Trailing whitespace removal in the full_analysis.py frame order sample script.

The 'scons clean' target now removes all LaTeX *.aux files.

The docs/latex/frame_order/ directory is now also being checked for *.aux files.

Added a section to the end of the frame order chapter about the long computation times.

Editing of the data analysis section of the frame order chapter of the manual.

A PCS structural error figure has been added, all the text improved, and the scripts made to match
those in sample_scripts/frame_order/.