Fix warning logging "Trying to delete a inexistent object"
Merge branch 'master' into event-notifications
Use sendSynchronous() for deploying event-notifications:
- If we don't send them synchronously, the same issue will happen which happened when the event-queue was only ordered per subscription and not per client: Trust/Score notifications will arrive BEFORE the notifications which create the involved Identity objects. Therefore, the client cannot properly store the Trust/Score object because it doesn't yet know about the identities to which they belong.
- This requires the branch PluginTalker-sync-send of my fred repository (at https://github.com/xor-freenet/fred-staging): There was no synchronous send in the FCP stuff so I had to implement it. I have not yet sent a pull-request about it because it currently only implements synchronous-send from server to client but not vice versa. Also, it still lacks an implementation for on-network FCP, it only implements it for communication inside the node.