Fixed ColorItem persistence. Since ColorItem is an extended DimmerType it could not been queried.
Change default ID to MAX_INTEGER to avoid problem deserialising
HEX conversion is a one way route when the integer value is negative!
Update node sanity check to new default value.
Removed duplicate dependency for freeswitch.
Changed startup order of init script, openHAB will be started at the end
of startup sequence.
Fixes #1195 and similar issue with db4o module