unpluaralize table names

[bambielli]

Best practice is for table names to be singular.

[bambielli]

So, postgres reserves "user" as a keyword, so you can't create a table called "user"...

I pushed a change to the branch rename-migrations-and-tables to rename the "users" table to "account", but I hate it.

I'm not going to merge it, but I'll keep it on the side in case I can think of a good reason that pluralized table names don't get the job done.