TransportTagRecogniser makes alien calls while holding a lock

This could cause deadlock. Refactor TagRecogniser and KeyManager so they don't need to hold locks while making alien calls.

mentioned in merge request !13 (merged)

Added ~11 label

Reassigned to @akwizgran

mentioned in commit 2621ab01

Status changed to closed

Milestone changed to Milestone A

Added ~10 and removed ~11 labels

mentioned in issue #1250 (closed)

mentioned in issue #1358 (closed)