relax SVN archive

A results directory can now be specified in the stereochem_analysis auto-analysis.

This is not being used yet.

Shifted the Gromacs phthalic acid structure.

Updated the package __all__ list to include all modules.

Added a directory to the test suite data for holding phthalic acid structures.

Missing import of pi.

The interpreter is now imported and set up. User function calls are now passed through this class.

Fix for the stereochem_analysis.py sample script - the instantiated class run() method must be run!

Converted the all-caps module variables into lower case class variables.

The __init__() method now accepts all the keyword args and stores them in the class namespace.

Removed the class instantiation from the auto_analyses.stereochem_analysis module.