. Added php.ini option 'dba.default_handler' to specify a default handler.
. Added parameter full_info to dba_handlers() that can be set true to
receive information about the handlers such like the library version.
+ . Added support for internal error handling of Berkeley db libraries.
. Disallow Berkeley db versions 4.1.0 to 4.1.24 due to locking problems.
. Disallow linkage of Berkeley db submodules against libraries with
different major version.