Doctrine Support of custom enum types in Pgsql

In postgres with existing schema you can have custom enum types. To support this with our current code base (symfony w/ doctrine 1.2.2) I had to make changes to doctrine import and datadict for pgsql driver. The patches attached are from the git tree.

0001-Postgresql-custome-enum-types-as-native-enum.patch
0002-Update-Pgsql-test-case-to-include-enum-changes-to-ta.patch

The patches are formatted from the git tree.

Thanks for an excellent ORM for php!