* Move creation of temporary instances from Folder.newContent to
  ERP5TypeInformation.constructInstance.
* Use temporary object and PropertyHolder (if possible) to get list of
  categories and properties.
* Also rewrite
  TranslationProviderBase.updateInitialPropertyTranslationDomainDict

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@30160 20353a03-c40f-0410-a6d1-a30d3c3de9de