Add upstream consumer information to import record for historical needs

Each import and import delete record will have an accompanying record to show the
upstream consumer information. This will allow access to that information even after
the import has been deleted from the system.
Updates for code review
Merge branch 'master' into wottop/import-record-consumer

Conflicts:
	spec/import_spec.rb
	src/main/resources/db/changelog/changelog-create.xml
	src/main/resources/db/changelog/changelog-update.xml
Remove logging
Merge pull request #378 from candlepin/wottop/import-record-consumer

Add upstream consumer information to import record for historical needs