Swagger command updates.
No header deletion for forms with files

Fixes #453
Merge pull request #457 from deegital/patch-1

No header deletion for forms with files
Behavior and usage updates.
fix enpoint bug
Merge pull request #460 from lucasdealmeida/master

fix enpoint bug
Default to DataTypes::STRING
Added  definition when  is provided.
Merge pull request #462 from bezhermoso/swagger-auth-definitions

Added 'authorizations` definitions when sandbox authentication is configured
Merge pull request #461 from bezhermoso/validation_parser_patch

Default to DataTypes::STRING when no constraints are found
Fixed the wrong endpoint value check when no endpoint is set in config.
Merge pull request #466 from djlemmings/master

Fixed the wrong endpoint value check when no endpoint is set in config.
Fixed endpoint is undefined in sandbox when custom_endpoint is disabled
Merge pull request #471 from yoshz/bugfix/undefined-endpoint

Fixed endpoint is undefined in sandbox when custom_endpoint is disabled
Ability to specify param-type of input class.
Merge pull request #468 from bezhermoso/param_type_options

Swagger: Ability to specify "paramType" for input
Missing handling for DataTypes::COLLECTION in parameters (input)
Update PhpDocHandler.php

https://github.com/nelmio/NelmioApiDocBundle/issues/477
Merge pull request #476 from bezhermoso/swagger-collection-parameter

[Fix] Missing handling for DataTypes::COLLECTION in parameters (input)
Added nested JMS groups exclusion