refactoring parser, BG parser

Added support for ServiceGroups

Fixes init.d script PID detection.

Closes issues 34 and 30

Puma support

Bugfix: deprecate sinatra/namespace - conflicts with Rake namespaces

Version bump.

Bugfix for obejcts parsing in upstream ruby-nagios.

Documentartion fix.

Bugfix - init.d script doe not load defauls on start.

New feature: configurable HOSTNAME regex.

Comments endpoints for host and service comments (GET).