nl_tokens: Build the region from a configuration object js { selector : #foo regionClass : FooRegion allowMissingEl : false }
pl_tokens: function ( regionConfig , DefaultRegionClass ) { var RegionClass = regionConfig . regionClass || DefaultRegionClass ; var options = _ . omit ( regionConfig , 'selector' , 'regionClass' ) ; if ( regionConfig . selector && ! options . el ) { options . el = regionConfig . selector ; } return <mask> RegionClass ( options ) ; }