Merge 'trunk' into 'subqueried_limit_fixes'

r9309@Thesaurus (orig r9296):  rabbit | 2010-05-04 09:44:51 +0200
Test for RT#56257
r9310@Thesaurus (orig r9297):  rabbit | 2010-05-04 10:00:11 +0200
Refactor count handling, make count-resultset attribute lists inclusive rather than exclusive (side effect - solves RT#56257

diff --cc lib/DBIx/Class/Storage/DBI.pm
Simple merge