Fixes #8519 - Bonus subs not being reindexed

Bonus subscriptions aren't being reindexed since the handler was only
watching for entitlements that got created/deleted. Handler should be
watching pool create/delete.
Merge pull request #4863 from dustints/bonus_subs

Fixes #8519 - Bonus subs not being reindexed
fixes #8681 - removing requirements for maruku
Merge pull request #4872 from jlsherrill/maruku

fixes #8681 - removing requirements for maruku
fixes #8671, #8684 - Hides custom products from SAM users, hides gpg keys from red hat products, BZ1173340, BZ1173764