relax SVN archive

Python 3 fix - ensure an integer is actually an integer (division now converts ints to floats).

Python 3 - fixes for the renaming of the Queue package.

Python 3 - converted the last of the except error catching statements to be Python 2.4+ compatible.

Python 3 - removal of the use of the string.atoi and string.atof functions.

These have been depreciated since Python 2.0!! They have been replace by the int and float
functions.

Python 3 - a number of fixes for running the ScientificPython modules in relax on Python 2 and 3.

This includes relative imports, converting raise statements to function calls, removal of the use of
many string module functions which do not exist in Python 3, etc.

Python 3 - modified some except statements to be Python 2.4+ compatible in a ScientificPython module.

Python 3 - converted some print statements to function calls in the ScientificPython modules.

Python 3 - Fix for an os.chmod() call by using the stat module rather than the number 0775.

The number 0755 is no longer valid in Python 3.

Python 3 - a pile of relative path fixes for many relax modules.

Python 3 - removed the use of the types module from generic_fns.sequence.

The relax arg_check module is now being used instead.