fix(binding): correctly binds single property model when using child array

Author: dimirc

src/select.js

@@ -64,7 +64,7 @@
 
       return {
         itemName: match[2], // (lhs) Left-hand side,
-        source: match[3], // (rhs) Right-hand side,
+        source: $parse(match[3]),
         trackByExp: match[4],
         modelMapper: $parse(match[1] || match[2])
       };
@@ -350,8 +350,7 @@
 
         //From model --> view
         ngModel.$formatters.unshift(function (inputValue) {
-          var match = $select.parserResult.source.match(/^\s*([\S]+).*$/);
-          var data = scope[match[1]];
+          var data = $select.parserResult.source(scope);
           if (data){
             for (var i = data.length - 1; i >= 0; i--) {
               var locals = {};