Move CLI logic into redash.cli and uses manager for tests.

Otherwise the Flask wasn't created and tests were failing.

manage.py

@@ -2,75 +2,8 @@
 """
 CLI to manage redash.
 """
-import json
-
-
-import click
-from flask.cli import FlaskGroup, run_command
-
-from redash import create_app, settings, __version__
-from redash.cli import users, groups, database, data_sources, organization
-from redash.monitor import get_status
-
-
-def create(group):
-    app = create_app()
-    group.app = app
-    return app
-
-
-@click.group(cls=FlaskGroup, create_app=create)
-def manager():
-    "Management script for redash"
-
-
-manager.add_command(database.manager, "database")
-manager.add_command(users.manager, "users")
-manager.add_command(groups.manager, "groups")
-manager.add_command(data_sources.manager, "ds")
-manager.add_command(organization.manager, "org")
-manager.add_command(run_command, "runserver")
-
-
-@manager.command()
-def version():
-    """Displays re:dash version."""
-    print __version__
-
-
-@manager.command()
-def status():
-    print json.dumps(get_status(), indent=2)
-
-
-@manager.command()
-def runworkers():
-    """Start workers (deprecated)."""
-    print "** This command is deprecated. Please use Celery's CLI to control the workers. **"
-
-
-@manager.command()
-def check_settings():
-    """Show the settings as re:dash sees them (useful for debugging)."""
-    for name, item in settings.all_settings().iteritems():
-        print "{} = {}".format(name, item)
-
-
-@manager.command()
-@click.argument('email', default=settings.MAIL_DEFAULT_SENDER, required=False)
-def send_test_mail(email=None):
-    """
-    Send test message to EMAIL (default: the address you defined in MAIL_DEFAULT_SENDER)
-    """
-    from redash import mail
-    from flask_mail import Message
-
-    if email is None:
-        email = settings.MAIL_DEFAULT_SENDER
-
-    mail.send(Message(subject="Test Message from re:dash", recipients=[email],
-                      body="Test message."))
 
+from redash.cli import manager
 
 if __name__ == '__main__':
     manager()