Fixing headpin migration

Fixing the headpin migration by setting content view for activation keys and
systems since it is required. Also, setting activation key system group to an
actual system group instead of another key.
actkey-multiple - allow multiple of same sub to be added to activation key

actkey-multiple - removed obsolete act key tests

actkey-multiple - commented code removed
Merge pull request #2723 from thomasmckay/actkey-multiple

actkey-multiple - allow multiple of same sub to be added to activation key
Merge pull request #2730 from daviddavis/fix-headpin-migration

Fixing headpin migration
merging for @daviddavis