Backwards compatibility: When duplicate category slugs exist, filter by language
Backwards compatibility: When duplicate category slugs exist, filter by language

michaelkuty/feincms-elephantblog,matthiask/feincms-elephantblog,joshuajonah/feincms-elephantblog,matthiask/feincms-elephantblog,feincms/feincms-elephantblog,joshuajonah/feincms-elephantblog,sbaechler/feincms-elephantblog,michaelkuty/feincms-elephantblog,matthiask/feincms-elephantblog,michaelkuty/feincms-elephantblog,sbaechler/feincms-elephantblog,feincms/feincms-elephantblog,sbaechler/feincms-elephantblog,joshuajonah/feincms-elephantblog