* Proper documentation.
* address or document the "close all cursors if you encounter an error"
* Change the $BerkeleyDB::Error to store the info in the db object,
if possible.
* $BerkeleyDB::db_version is documented. &db_version isn't.
* migrate perl code into the .xs file where necessary
* convert as many of the DB examples files to BerkeleyDB format.
* add a method to the DB object to allow access to the environment (if there
actually is one).
Possibles
* use '~' magic to store the inner data.
* for the get stuff zap the value to undef if it doesn't find the
key. This may be more intuitive for those folks who are used with
the $hash{key} interface.
* Text interface? This can be done as via Recno
* allow recno to allow base offset for arrays to be either 0 or 1.
* when duplicate keys are enabled, allow db_put($key, [$val1, $val2,...])
2.x -> 3.x Upgrade
==================
Environment Verbose
Env->open mode
DB cache size extra parameter
DB->open subdatabases Done
An empty environment causes DB->open to fail
where is __db.001 coming from? db_remove seems to create it. Bug in 3.0.55
Change db_strerror for 0 to ""? Done
Queue Done
db_stat for Hash & Queue Done
No TxnMgr
DB->remove
ENV->remove
ENV->set_verbose
upgrade
$env = BerkeleyDB::Env::Create
$env = create BerkeleyDB::Env
$status = $env->open()
$db = BerkeleyDB::Hash::Create
$status = $db->open()