Log Message:
Updated py-sqlparse to 0.2.2.

Release 0.2.2 (Oct 22, 2016)
----------------------------

Enhancements

* Add comma_first option: When splitting list "comma first" notation
  is used (issue141).

Bug Fixes

* Fix parsing of incomplete AS (issue284, by vmuriart).
* Fix parsing of Oracle names containing dollars (issue291).
* Fix parsing of UNION ALL (issue294).
* Fix grouping of identifiers containing typecasts (issue297).
* Add Changelog to sdist again (issue302).

Internal Changes

* `is_whitespace` and `is_group` changed into properties