Use "flask" command instead of "extranet_" about abilian-core

[vindarel]

We need to export a FLASK_APP.

core or other projects don't have a simple app variable in their app.py, but a class that inherits the Flask object:

class Application(Flask, ServiceManager, PluginManager):

and

def create_app(config=None):
    return Application(config)

Defining export FLASK_APP=abilian.app:create_app is not enough.

[sfermigier]

cf. http://mitsuhiko.pocoo.org/flaskfun.pdf (slides 24+)

[sfermigier]

One needs a very basic devapp.py in each project that depends on abilian-core.

[sfermigier]

And to convert existing scripts (that use flask-script) to the new API (should be easy).

[vindarel]

OK thanks, a devapp.py at the project root and export FLASK_APP=devapp works.

[vindarel]

see https://github.com/abilian-private/extranet-spr/issues/10 and https://github.com/abilian-private/extranet-mpr/issues/20