integrate flaskbb in another app

app.py

from flask import Flask
from werkzeug.serving import run_simple
from werkzeug.wsgi import DispatcherMiddleware
from flaskbb.user.models import User
from flaskbb import create_app as flaskbb
from flaskbb.configs.development import DevelopmentConfig as Config

from flask.ext.login import LoginManager
from flask.ext.sqlalchemy import SQLAlchemy

DEBUG = True
# If you do not use the same session key, it will not work!
SECRET_KEY = 'SecretKeyForSessionSigning'
SQLALCHEMY_DATABASE_URI = 'sqlite:////home/peter/Documents/Workspace/flaskbb_website' + '/' + \
                          Config.PROJECT + ".sqlite"

# create the "main app"
app = Flask(__name__)
app.config.from_object(__name__)

# You need to initialize these applications in order to use it in this app
# You also need to add the configurations for extensions
# Update the flaskbb config
Config.SQLALCHEMY_DATABASE_URI = SQLALCHEMY_DATABASE_URI

login_manager = LoginManager(app)
db = SQLAlchemy(app)

# Create the flaskbb app
Config.SQLALCHEMY_DATABASE_URI = SQLALCHEMY_DATABASE_URI
flaskbb = flaskbb(Config)


@login_manager.user_loader
def load_user(id):
    return User.query.get(id)


@app.route("/")
def index():
    return "Hello World %s" % User.query.filter_by(id=1).first().username

application = DispatcherMiddleware(app, {
    '/forum': flaskbb
})

if __name__ == "__main__":
    run_simple(
        '0.0.0.0',
        5000,
        application,
        use_reloader=True,
        use_debugger=True
    )

create_db.py

# This will create the db from flaskbb
from flaskbb.utils.populate import create_test_data
from flaskbb.user.models import *
from flaskbb.forum.models import *
from flaskbb.pms.models import *
#from flaskbb.extensions import db
from app import flaskbb


with flaskbb.app_context():
    create_test_data()