Disable all schema creation.

 o This means the server now starts and shows UI when backed
   by neo. Crashes when queried from syntax error.
 o We will want to re-introduce some constraints later on I think,
   specifically hockeypuck does a lot of work to de-duplicate
   entries, wich we should be able to get rid of by using a
   unique constraint and neo4js upsert command, MERGE.

   We'll also want some indexes, obviously.