mauricio/postgresql-async — pull request #31 by magro (2013-06-30 22:04:36+00:00)
Title: Add support for Options (Some/None) in prepared stmt parameters

Allows to specify Some(value) or None in prepared stmt parameters,
as until now an Option had to be passed as `opt.getOrElse(null)`.

Is implemented for mysql and postgresql.

Closes #30