PostgresApp/PostgresApp — pull request #105 by jasiek (2013-04-30 21:21:32+00:00)
Title: Postgres.app now comes pre-packaged with libxml2.

In certain circumstances (https://github.com/PostgresApp/PostgresApp/issues/104), postgres will not load libxml2 thus rendering the xml type unusable. I think this has to do with the fact that different versions of MacOS X ship with different versions of libxml. One way to remedy this is to include libxml2 when shipping Postgres.app.