check-beanstalkd: Fixes the types of W,C arguments.

Unless the default was used, the argument would be a string instead of a tuple
of numbers which wouldn't be comparable to a Fixnum lower in the code.
Added an option to allow users to set the comparison operator between the snmp data and the warning/critical threshold.
Make prefix optional.  Add graphite support ('flatten' hostnames)
Travis fixes
Swaped a negated if for an unless statement
Removed not so useful description
Added support for API V2
Merge pull request #469 from n1tr0g/master

Added support for API V2
Added first version of PHP-FPM metrics plugin.
Fixed -n --name "varnish_name" option handling.
Helpful debugging info for victorops.
Merge pull request #482 from nstielau/small_victorops_tweaks

Helpful debugging info for victorops.
Adding in sensu client and check data to victorops payload.
Merging in master
Merge pull request #483 from nstielau/victorops_payload

Adding in sensu client and check data to victorops payload.
[statsd-extension] a statsd implementation for sensu clients \o/
[statsd-extension] rubocop adjustment, ColonMethodCall
Merge pull request #484 from portertech/statsd-extension

A Statsd implementation for Sensu clients \o/
[statsd-extension] need to append \n to metric batch before sending
Merge pull request #486 from portertech/statsd-extension

Statsd extension: Need to append \n to metric batch before sending