Initial Import
Added a utils folder that contains utilities for maintaining the Land Use
Model (LUC) runtime folders and migrating from earlier implementations.

createFolders.py creates a basic folder structure to be used for modeling
input data.  

loadSimMaps.py walks the fss_storage site, extacts meta data and GIS
files for each SimMap, and creates a SimMaps on the new site.  

leamsite.py provides a class based on mechanise to manage documents, folder,
images, and simmaps on a plone site.  Warning: currently handles coded to
read simmaps v1 but write simmap v2.
Added setup_directory to all ReferenceBrowserField.

Fixed bug in getConfig where syear (an int) was not getting converted to a
string appropriately.
Added Probmap content type for managing a collection of drivers.  Drivers
are combined to create a probability map which may be stored for future
use within the content type.

Removed individual drivers from the LUC Scenario content type.
Modified leamsite.py to include the description when adding SimMaps.

Modifed the directory mapping in loadSimMaps to support the old ccrpc site.

Fixed bug with createFolders where the top level (luc) folder was created.
Created a Projection type.  

Changed the name from Probmap to Driver Set.

Changed probmap,a field of Driver Set, to be standard FileField type
because of problems with BlobField.  Need to investigate this further.
Added a control panel to configure the repository and command line
for the scenario.
Basic cleanup and changes to field labels and descriptions.

Added registry variables to provide point to subversion repository and 
to startup command.  Not fully implemented.
Create a IModel marker interface to be used for job queuing.  Modified
the pop_queue method and the lucscenario type to support new interface.
Added interface for Model type.  New models will inherit from this base class.
New Version 1.1 --

Added error handling to scenario getConfig method.
Fixed bug with density maps not being referenced correctly in projection
configuration file.