Add support for multiple in-process pyramid apps

Signed-off-by: Rick Copeland <rick@synapp.io>
Remove requirements since chapman is never deployed alone

Signed-off-by: Rick Copeland <rick@synapp.io>
When messages release a resource, they should remove themselves from both the active and queued list on that resource

Signed-off-by: Rick Copeland <rick@synapp.io>