[patch_done] libpq.so.5 support (linux)

[trupka]

Hi,

Since v8.2, postgresql client library on linux comes with different version (and name) :
<= pg 8.1 - libpq.so.4
>= pg 8.2 - libpq.so.5

New library is backward compatible so it's easy to add support for it. Patch against /branches/testing rev. 803 is attached.

[mdaems]

Patch applied in SVN rev 804.

Mark