[CR2] Needed changed in operator and upgrade images

Hi dcoleman@redhat.com,

I don't know if you get the github notifications from syndesis repo, but here is the summary what needs to be done for CR2 (from 1.4.7 syndesis tag):

Upgrade:

• there are new scripts https://github.com/syndesisio/syndesis/tree/master/tools/upgrade/migration/resource/1.1
  These scripts need to be placed in /opt/migration/resource/<SYNDESIS_PROD_VERSION> directory, so for 7.1 the directory will be "1.1"
• there is new package "PyYAML" that needs to be installed in the ugprade image https://github.com/zregvart/syndesis/blob/5dd9772b679c54fb4922003301afabe3956bbb6c/tools/upgrade/Dockerfile#L23

Operator:

• template that sits in /conf/syndesis-template.yml needs to be regenerated to pick up changes
• entrypoint should include -registry <rh containers registry> switch

Here are the comments in case I didn't understand something (could be the case with the operator image )

https://github.com/syndesisio/syndesis/pull/3448