Please merge r59141 (Berkeley DB 4.3 support) to apr 0.9.x

[Max Bowsher]

Please merge r59141 (Berkeley DB 4.3 support) to apr 0.9.x

The diff applies cleanly (with the exception of the CHANGES file, of 
course).


Once this is done, please could an apr-util 0.9.6 release be considered.

Thankyou,

Max.