Add support for global refresh interval for handlers
Use settings['check']['refresh'] rather than checks
Add support to set global occurences and refresh values for handlers
Set interval variable in defaults

Set interval variable in defaults
Clean up some whitespace
Merge branch 'defaults' of github.com:DoubleNegativeVisualEffects/sensu-plugin into default

Conflicts:
	lib/sensu-handler.rb
Confirm sensu_plugins settings is a Hash
Merge pull request #53 from DoubleNegativeVisualEffects/defaults

Add support to set global occurences and refresh values for handlers