New test release (1.15_2) of DBD::ODBC

I have uploaded to CPAN 1.15_2 test release of DBD::ODBC. This contains
a lot of changes (even since 1.15_1), in particular wrt building, so I'd
welcome any feedback. You can also find it temporarily at:

ftp://ftp.easysoft.com/pub/odbc-odbc-bridge/Perl/modules/DBD -ODBC-1.15_2.tar.gz

The changes are:

Fix bug in DBD::ODBC's private function data_sources which was
returning data sources prefixed with "DBI:ODBC" instead of "dbi:ODBC".

If you don't have at least DBI 1.21 it is now a fatal error instead of
just a warning.

DBI->connect changed so informational diagnostics like "Changed
database context to 'master'" from SQL Server are available in
errstr/state. These don't cause DBI->connect to die but you can test
$h->err eq "" after connect and obtain the informational diagnostics
from errstr/state if you want them.

Fixed problem in 41Unicode.t where utf8 was used before testing we had
a recent enough Perl - thank you cpan testers.

Changed "our" back to "my" in Makefile.PL - thank you cpan testers.

Removed all calls to DBIh_EVENT2 in dbdimp.c as it is no longer used
(see posts on dbi-dev).

Changed text output when a driver manager is not found to stop
referring to iodbcsrc which is no longer included with DBD::ODBC.

Changed Makefile.PL to attempt to find unixODBC if -o or ODBCHOME not
specified.

Updated META.yml based on new 1.2 spec.

Changed Makefile.PL so if an ODBC driver manager is not found then we
issue warning and exit cleanly but not generating a Makefile. This
should stop cpan-testers from flagging a fail because they haven't got
an ODBC driver manager.

Changed Makefile.PL so it no longer "use"s DBI/DBI::DBD because this
makes cpan-testers log a fail if DBI is not installed. Changed to put
the DBI::DBD use in the CONFIGURE sub so PREREQ_PM will filter out
machines where DBI is not installed.

Fix a possible typo, used once in 10handler.t.

Martin
--
Martin J. Evans
Easysoft Limited
http://www.easysoft.com