Merge 'DBIx-Class-current' into 'storage_exceptions'

Merge 'DBIx-Class-current' into 'storage_exceptions'

r6928@moloko (orig r2221):  ningu | 2006-07-20 17:02:09 -0500
fix oversight with source_name (regular accessor, not component_class)
r6929@moloko (orig r2222):  castaway | 2006-07-21 02:20:14 -0500
Minor fixes to deploy / sqltargs, and more glossary

r6930@moloko (orig r2223):  dsully | 2006-07-22 18:22:35 -0500
Avoid a FC5 performance hit by using a named hash and then blessing it.

r7341@moloko (orig r2597):  blblack | 2006-07-23 11:23:02 -0500
 r2074@moloko (orig r2072):  blblack | 2006-06-28 18:41:58 -0500
 creating column_info_from_storage branch
 r2075@moloko (orig r2073):  blblack | 2006-06-28 19:44:39 -0500
 turn off automatic columns_info_for by default.  Can be enabled per-source with __PACKAGE__->load_column_info_from_storage