Merge pull request #1175 from mmeisinger/fix_OOIION1010

Fix OOIION-1010
change deployed_site attribute to a list
Initial revision of get_platform_extension
Fixed issues in IMS
Merge branch 'master' into fixOOIION1010

Conflicts:
	extern/ion-definitions
	ion/services/sa/instrument/instrument_management_service.py