Add link to really helpful Sequel documentation.
Overload `database` so it can also return the db object.
Allow SQL string syntax for queries as well as Sequel DSL.
Call it 'igor' rather than 'exps' now.
Add `expect` feature.
Get rid of unneccesssary 'status' print.
Pull direct SQL query option out to `sql`.

(seemed too confusing to call something like `jobs('select...')` but
still have to specify 'from jobs' in the query)