Fixing werkzeug library import error (Issue #364)
Fixing werkzeug library import error (Issue #364)

Werkzeug Library moved its DispatcherMiddleware class from "wsgi" module
to "middleware.dispatcher" module. This causes an import error when
spinning up the demo app. This commit therefore fixes the issue #364:
https://github.com/flasgger/flasgger/issues/364

rochacbruno/flasgger,rochacbruno/flasgger,flasgger/flasgger,flasgger/flasgger,flasgger/flasgger,flasgger/flasgger,rochacbruno/flasgger