Log Message:
Update to 1.643

Upstream changes:
Changes in DBI 1.643 - ...

Fix memory corruption in XS functions when Perl stack is reallocated
    thanks to Pali
Fix calling dbd_db_do6 API function
    thanks to Pali
Fix potentially calling newSV(0) in malloc_using_sv()
    thanks to Pali
Fix order of XS preparse() ps_accept and ps_return argument names
    thanks to Petr Písař
Fix a potential NULL profile dereference in dbi_profile()
    thanks to Petr Písař
Fix a buffer overflow on an overlong DBD class name
    thanks to Petr Písař

Remove remnants of support for perl <= v5.8.0
    thanks to Pali and H.Merijn Brand
Update Devel::PPPort and remove redundant compatibility macros
    thanks to Pali and H.Merijn Brand

Correct minor typo in documentation
    thanks to Mohammad Anwar
Correct documentation introducing $dbh->selectall_array()
    thanks to Pali
Introduce select and do wrappers earlier in the documentation
    thanks to Dan Book
Mark as deprecated old API functions which overflow or are affected by
    Unicode issues, thanks to Pali

Add new attribute RaiseWarn, similar to RaiseError,
    thanks to Pali