schema: cleaned up iftype and arptype mappings
names: added more names to arp-type mapping
Merge pull request #120 from mtomaschewski/schema-types

schema: cleaned up iftype and arptype mappings
fsm: Add tranistion from DEVICE-UP to DEVICE-EXISTS

This transition should call shutdownDevice() method.
cleanup: remove variable names from prototype declarations
bonding: Add shutdownDevice() method handler

Release all bonding slaves on shutdownDevice().
bridge: Add shutdownDevice() handler for bridge interfaces

On shutdownDevice() call, the bridge's port are getting deleted
and removed from the port's list.