Camel case endpoint methods within blueprints are converted to lower case

[FrancisJMR]

KeyError generated when a blueprint's endpoint method is defined with a camel case pattern.

E.g.

In views/pet.py

PetName = Blueprint('PetName', __name__, template_folder='templates')
@PetName.route('/petname', methods=['POST'])
@use_kwargs({'name': fields.Str()})
@marshal_with(PetNameSchema(many=False))
def petName():
    ...

In app.py

...
docs.register(petName, blueprint='PetName')

Registering the doc with blueprint results in KeyError: 'PetName.petname'

Changing the endpoint to lower case e.g. def petname() solves this.

[MattiaFailla]

Unfortunately I'm encountering the same error but it seems that a PR is already available here #100