Added error handling for MVCP server init

Signed-off-by: Juan Martin Runge <jmrunge@gmail.com>
Updated melted-node dependency to use latest version wich includes the fix for sending an error when melted server cant be reached

Signed-off-by: Juan Martin Runge <jmrunge@gmail.com>
Merge pull request #24 from inaes-tic/jmrunge/#22

Jmrunge/#22