relax SVN archive

More exception handling changes to be Python 2.4+ compatible.

Python 3 preparations - exception handling fix to be Python 2.4+ compatible.

Reverted r17598 for the multi.processor module as this breaks in Python 2.

The command used was:
svn merge -r17598:r17597 processor.py

Python 3 conversions using 2to3.

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

Updated the Python 2 to 3 checklist document for the shifting of the 'relax' file to 'relax.py'.

Python 3 preparations - removed all usage of the xrange() in the generic_fns package as none are needed.

The command used was:
2to3 -w -f xrange .

Python 3 preparation - eliminated the unneeded use of xrange().

Python 3 preparation - the use of an absolute module path for import.

Python 3 preparations - the auto_analyses package is now fully Python 2 and 3 compatible.

The command used was:
2to3 -w -f except -f import -f imports -f long -f numliterals -f xrange .

Python 3 preparation - the auto_analyses package now uses absolute paths for the module imports.