CAD and EMS Web Services

LL-5:  Updated CAD web service to store incoming XMLs in a hashmap (to
be removed later).  Created update method that replace the stored xml in
the hashmap with the new one (must be revised to update the PCR in the
database).  Implemented GET method to return the CAD info as an xml.

Switched PCR web service to EMS web service.  Binds incoming XMLs to the
EMSDataSet generated objects (method is outdated and needs revision).