Added many-to-one relationship dropdowns
Added many-to-one relationship dropdowns

Ensembl/public-plugins,Ensembl/public-plugins,andrewyatz/public-plugins,andrewyatz/public-plugins,andrewyatz/public-plugins,andrewyatz/public-plugins,muffato/public-plugins,Ensembl/public-plugins,andrewyatz/public-plugins,muffato/public-plugins,muffato/public-plugins,muffato/public-plugins