Prerelease for 2005/07/11&12 accounting training. Maybe bugs left ...

Changelog says :
removed pcg base category (replaced by gap/france/pcg, which moved in accounting_l10n_fr)

Added (initial) support for grouping reference

Added standarts accounting reports (General ledger, Trial Balance, Journal)
Added other reports (Other Parties, Bank Accounts)

Various bug fixes


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3432 20353a03-c40f-0410-a6d1-a30d3c3de9de