make rymd connect to endpoint where last activity was made
Post message to logger if no endpoints are connected to identity
Remove debug messages
Merge branch 'develop' into branch 'feature/connect-last-seen'
Merge branch 'fix/tests' into develop
Add private key methods to rymdnode
Throw error if key doesn't exists for an identity in getPrivateKey
Remove unused sample private key
Trigger 'init' event on RymdNode init
Add 'getPublicKey' method
Fix: Remove 'debug' fail code
Refactor algorithm for finding lastendpoint
Merge branch 'feature/connect-last-seen' into develop
Add test for #setPrivateKey
Revert "Add test for #setPrivateKey"

This reverts commit 4954574cd0c7e7fe08e9e4fcafc630f6650db310.
Merge branch 'develop' into fix/tests