DDF-895 Removed the CDDA OpenSearch functionality and updated the remaining OpenSearchSource to remove unused methods and variables.  Also cleaned up the OpenSearchSiteUtil and removed methods that were only used by CDDA.  Finally removed unused interface and additional class that was only used by CDDA
DDF-895: Merge branch 'cdda' of http://github.com/jvettraino/ddf-catalog into jvettraino-cdda

Conflicts:
	opensearch/catalog-opensearch-source/src/main/java/ddf/catalog/source/opensearch/OpenSearchSource.java
Merge branch 'jvettraino-cdda'