Merge pull request #1 from elasticio/master

Removed unused props
Added extensions to provide API key in preProcess
Changed parameter type to custom
Changed HTTP method to POST
Changed preProcess extension to preRequest
Some logs
Create options.body if does not exist
Improved body parsing
Added new params
Added to property
Changed type of to property to object
Back to array type
Added authorizations
Removed extensions
Removed authentication
Fixed a typo