add script to automate creating the admin user

create_user.py

+# this script is based on @jmchilton's preseed.py (https://gist.github.com/jmchilton/1979583)
+# it creates the admin user and sets an API key for it.
+from scripts.db_shell import *
+
+admin_user = User("galaxy@commonwl.org")
+admin_user.set_password_cleartext("galaxy")
+sa_session.add(admin_user)
+sa_session.flush()
+
+admin_key = APIKeys()
+admin_key.user_id = admin_user.id
+print 'Setting admin id as %s' % admin_user.id
+admin_key.key = '111111111111111111111'
+sa_session.add( admin_key )
+sa_session.flush()