Alarm logging fixes and logging property cleanup

Note that the following properties have been removed:

alarms.remote-logging.level
alarms.server.host
alarms.server.port

Note that the following properties have been added:

dcache.log.level.file
dcache.log.level.pinboard
dcache.log.level.remote
dcache.log.level.events
dcache.log.server.host
dcache.log.server.port
dcache.log.format.file
dcache.log.format.pinboard
alarms.server.log.level