Implemented basic FinLink loading and storing
Implemented save-to-tmp-then-overwrite tactic, to prevent loss of data in case of a write error
Throw exception in case saving fails
Refactored the link removal code a bit
Implemented de-registering to-be-removed comlink (as) receiver
Refactored the adding of operational comlinks a bit
Implemented mutual receiver registering between comlink and finlink objects
Changed exception to only logging, to allow the calling code to remove the deleted pointer from the pending comlink list (in a simple way)