Revert "Upgrade couchpotato to 2.5.1"

This reverts commit 06809de8b6d791185a315c976d79fe25769af443.
Revert "Revert "Upgrade couchpotato to 2.5.1""

This reverts commit 7cdab8fb95cb96e6a4401aaaab5eed5821b8a2c6.