lib/abaaso.js
function ( obj, arg ) {
		array.each( arg, function ( i ) {
			array.add( obj, i );
		});

		return obj;
	}
function ( obj, arg ) {
		array.each( arg, function ( i ) {
			array.add( obj, i );
		});

		return obj;
	}
function ( obj , arg ) { array . each ( arg , function ( i ) { array . add ( obj , i ) ; } ) ; return obj ; }
Merges `arg` into `obj`, excluding duplicate indices

@method merge
@param  {Array} obj Array to receive indices
@param  {Array} arg Array to merge
@return {Array}     obj
Merges arg into obj excluding duplicate indices