Release 1.0.0

• huge rewrite of the Plugin, changed nearly every parameters
• upgrading from versions prior to 1.0.0 require to change your monitoring configuration
• added own nitro implementation and dropped the dependency to Nitro.pm by Citrix
• added check for unsaved configuration changes (changes in nsconfig not written to disk)
• improved check for ssl certificates to only check for a specific certificate
• fixed a bug in check_state to support services and servicegroups again