Swagger command updates.
No header deletion for forms with files

Fixes #453
Behavior and usage updates.
fix enpoint bug
Default to DataTypes::STRING
Added  definition when  is provided.
Fixed the wrong endpoint value check when no endpoint is set in config.
Fixed endpoint is undefined in sandbox when custom_endpoint is disabled
Ability to specify param-type of input class.
Missing handling for DataTypes::COLLECTION in parameters (input)
Update PhpDocHandler.php

https://github.com/nelmio/NelmioApiDocBundle/issues/477
Added nested JMS groups exclusion
Impossible to access an attribute (\"custom_endpoint\") on a NULL variable

My setup obviously does not have a authentication property set. This change fixes the error.
Fix: 'items' parameter for collections in parameters.
Pass in parameter for late resolving.
Only show request format dropdown when there are multiple formats
Fix #486
add show/hide button and list/expand operations buttons on sections

add a new parameter default_sections_opened: false (default)
To start with sections opened or closed
adding optional color codes for tags annotation
Alternate model naming strategy.