Update p5-DBIx-Easy to 0.19.

Changes from previous:
----------------------
* Sun Jan 22 13:47:20 2012 CET Stefan Hornburg (Racke) <racke@linuxia.de>
(scripts/dbs_update): fix CSV imports

* Tue Nov 1 17:07:06 2011 CET Stefan Hornburg (Racke) <racke@linuxia.de>
(scripts/dbs_update): use Val hash key instead of Value method to retrieve
values from spreadsheet cells.

* Tue Nov 1 16:49:32 2011 CET Stefan Hornburg (Racke) <racke@linuxia.de>
(scripts/dbs_update): fix crash with undefined values inside of
spreadsheet cells.

* Sat Oct 29 15:31:28 2011 CEST
(scripts/dbs_update): add --insert-only commandline option.

* Thu Oct 20 11:42:05 2011 CEST
(Easy.pm): add special case for specifiying mysql_socket.

* Thu Oct 20 10:56:52 2011 CEST
(scripts): switch to /usr/bin/env in shebang.

* Thu Jan  8 19:32:57 2009 CET Stefan Hornburg (Racke) <racke@linuxia.de>