* Starting to document Logstash config management APIS
* Removing copy pasta
* Adding delete pipeline API doc
* Mention updates in Create Pipeline API doc
* Capitalization fix
* Adding Retrieve Pipeline API doc
* Adding List Pipelines API doc
* Fixing typos
* Fixing DELETE pipeline API response code
* Add description field to GET pipeline response
* Update PUT pipeline API response to match implementation
* Fixing and annotating GET pipelines response
* Add AIP doc reference to index
* Adding xpack role
* Adding floats
* Missed list item
* Fixing rebase auto-merge
* Adding intro section to Logstash Configuration Management API page
* Bolding "experimental"
* Fixing typo