Provide support for Class::DBI::Frozen::301 via UNIVERSAL::require

Provide support for Class::DBI::Frozen::301 via UNIVERSAL::require

Class::DBI changed its API interfaces after the 3.0.1 release, causing much
pain (and incompatibility for existing applications like Evergreen). Some
distributions package Class::DBI 0.96 or 3.0.1, but newer distributions
package an incompatible 3.0.17. An alternative is to install the
Class::DBI::Frozen::301 module from source; UNIVERSAL::require enables us
to try loading both and use whichever one we find.

git-svn-id: svn://svn.open-ils.org/ILS/trunk@16811 dcc99617-32d9-48b4-a31d-7c20da2025e4