bugfixes and simplifications
removed nasty bug in signal()
unfied parser and server_parser
make RUN_ARGUS flag optional in network_mod
minor code cleanup
updated file_watcher syntax
changed type of zeromq socket
added check_cluster.py script
renamed check_cluster to check_icinga_cluster
support max file size in get_file_content
handle devices referenced by by-id/by-uuid
migration to new python-modules-base (psutils based)
migrate to psutils
catch vanished processes
added fields to json serializer
handle empty duplex / speed settings
fixed bugs
simply commandline handling
catch default speed / duplex arguments
handle absent BBU for megaraid controllers
recognize raw-devices (without partitions)
handle raw discs