zorpctl: changed num-of-processes option to parallel-instances
zorpctl: fixed service rate avg1 plugin
zorpctl: added constuctor parameter
zorpctl: removed parent prefix from szig walk algorithm result
zorpctl: added unittests
zorpctl: extracted some methods to be more testable
zorpctl: moved HandlerMock class to its own file
zorpctl: added more unittests
zorpctl: added service rate algorithm test
zorpctl: added instances.conf file path to open fail exception
zorpctl: fixed typo
zorpctl: cut name param from zorp_argv in InstancesConf
zorpctl: added thread limit nagios plugin