* Rename $Test::DBIx::ThinSQL::SHARE_DIR to $DBIx::ThinSQL::SHARE_DIR.

* Consider use of SQL::Splitstatement in Deploy

* Convert all exported subs into non-anonymous package subs

* check for nothing returned from select statements: what should be
returned by hashes, arrays, etc?

* implelent qi() for quote_identifier.

* Use the {Statement} attribute for recent SQL sentence

* Handle this properly:

    where => [
        { status => [ 'Active', 'Expansion', 'Greenfield' ] },
        ' OR ', { status => undef }
      ],

    WHERE
        status IN (?,?,?) OR status IS NULL

* drop_tables() should be done with "DROP TABLE" statements
