Update package homepage
Rearranging a few things for code grouping.
Added query.as() for defining subquery names
Added support for subqueries on the FROM directive.
Test coverage for query.debug()
Added support for subqueries as joins
Test for missing table name on subquery
Added support for subqueries as columns
Added examples for all uses of query.exec()
Docs regenerated.
Changelog updated
0.4.0