Continuing updates to configuration files and Shibboleth testing features added

   - On a failed retrieval of shibboleth data, all server variables are displayed in the trace route (which is made available publicly) (NOTE: will add a debug flag to the shibboleth configuration to control this display in the very near future)
   - Added reference to newly updated sobekcm_config.xsd (at SobekRepository.org) to all config files
   - Validated all standard config files
   - Updated installed for the new files
   - Created the Shibboleth configuration class structure (NOTE: Still need to implement the XML reader)