1017394: Existing entitlement freezes all consumer entitlements when content set count is increased.

Result of fix is that only the entitlement with the content set excess will be frozen
The entitlement will remain in dirty state until either the content set count goes below 185 or the client upgrades to a V3 client version.
All other entitlements will behave normally.
Merge pull request #407 from candlepin/wottop/1017394

1017394 - Existing entitlement freezes all consumer entitlements when co...