[Catalyst] Loader and circular references

[James Tolley]

> Other than the Time::Piece support, why is that module mysql specific?

It uses these bits to discover key and type info:

 type => $sth->{mysql_type_name}->[$i],
 pri => $sth->{mysql_is_pri_key}->[$i],

Other than that, I guess not much, especially since I'm dropping
Time.:Piece::MySQL. (scalar localtime is a lousy default stringification
outside the db.)

It could be made to serve other DBDs. This is a good idea. I'll look into
it.

Thanks,

James