Updated language file.
Implemented sortIds (interface IMetaModelAttribute)
Merge pull request #11 from paulpflug/dev

Implemented sortIds (interface IMetaModelAttribute). Fixes issue #7
The config now does "deep assignments"
See https://github.com/MetaModels/core/issues/193
Bugfix issue #12 - do not use mysql_real_escape_string.
Implement IMetaModelAttribute::getFilterUrlValue().
Merge branch 'dev' into contao3
First iteration of Contao 3 compat with namespaces.