Update to domoticz spk&cross (rev 1812)

Boost patch did not seem to be necessary anymore, so removed
updates to Makefiles/PLIST of cross and spk for rev 1801
dsm-control.sh updated to correctly start/stop/status domoticz
installer.sh updated to create a /var directory
I was unable to break this into multiple commands
since domoticz does not write a pidfile itself I need to use $! from bash, but since it is started from
su - -c "", I need to use $! from within the same session, hence the 
"& echo \$! > ${PID_FILE}"