- Added class Query
- Added class ComplexQuery
- rewrote code of buildSQLQuery
- renamed getSqlCatalogRelatedKeyList to getSQLCatalogRelatedKeyList(
- many code cleanup


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@12035 20353a03-c40f-0410-a6d1-a30d3c3de9de