This allows DataList::create('SiteTree') as equivalent to Object::create('DataList', 'SiteTree'), without
having to have a create() function on DataList. Required for E_STRICT compliance.
API CHANGE Deprecated Translatable::get_langs_by_id() - use getTranslations()
MINOR Removed Translatable::is_default_locale() - no deprecation necessary, was recently added
MINOR Removed commented out methods in Translatable: augmentNumChildrenCountQuery(), augmentAllChildrenIncludingDeleted() and augmentStageChildren()
MINOR Removed fieldsInExtraTables() and extendWithSuffix()
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@75742 467b73ca-7a2a-4603-9d3b-597d59a354a9