relax SVN archive

Removed the nesting of the Iterator class.

Alphabetical ordering of methods.

Redesigned and cleaned up how the Grid_info class is initialised.

This is necessary as the grid_ops data structure was eliminated from the 1.3 line a long time ago.
Now the lower, upper, and inc data structure structures are passed in. In __init__(),
calc_grid_size(), calc_grid_values(), and calc_strides(), the code has been cleaned up, comments
added, and docstrings written.

Modified the Grid_info class remove the grid_ops arg.

This is now removed and subdivided into 'inc', 'lower', and 'upper' in the 1.3 line.

The Grid_info class is now being imported.

Eliminated the pre_and_post_amble mess (that can be nicely handled with the verbosity flag).

Conversion from Numeric to numpy.

Many, many whitespace fixes.

Copied the grid.py minimisation module from the original multi_processor branch.

The command used was:
svn cp svn+ssh://bugman@.../svn/relax/branches/multi_processor/minimise/grid.py subdivide_grid.py

This module is now part of minfx, but the Grid_info class will be used by the multi-processor code to
subdivide the diffusion tensor grid search. The code needs much work!

Changes to how the model-free and optimisation data/params are passed into the processor instances.

Two data containers are now used, one for the model-free data, the other for the optimisation
parameters. This significantly cleans up the multi-processing model-free interface.