fix bug

Author: joeyorlando

flask_restplus_marshmallow/__init__.py

@@ -3,6 +3,6 @@
 from ._http import HTTPStatus
 from .model import Schema, DefaultHTTPErrorSchema
 from .namespace import Namespace
-from .parameters import JSONParameters, QueryParameters, HeaderParameters, FileParameters
+from .parameters import JSONParameters, QueryParameters, HeaderParameters, FileParameters, FormParameters
 from .swagger import Swagger
 from .resource import Resource

setup.py

@@ -3,7 +3,7 @@
 
 setup(
     name="flask-restplus-marshmallow",
-    version='0.2.19',
+    version='0.2.20',
     url="https://github.com/joeyorlando/flask-restplus-marshmallow",
     author="Joey Orlando",
     author_email="[email protected]",