Allow SQL tables on RHS

Also adds a few bonus features:
- Create tables if they don't exist
- Create views for all sqltables
- Adds materialize keyword/special parsing

Also fixes a few bugs:
- Use the tabname_view table for everything!
- tabname_view selects from tabname
Merge branch 'master' of github.com:ilikerps/budsql

Conflicts:
	lib/bud/bud_meta.rb
	lib/bud/collections.rb
	lib/bud/rewrite.rb
Fix CREATE TABLE