Fix single empty select options (#17)

Author: Ayman

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-sc-select",
-  "version": "0.4.1",
+  "version": "0.4.2",
   "homepage": "https://github.com/singlecomm/angular-sc-select",
   "authors": [
     "Matt Lewis"

dist/sc-select.js

@@ -347,7 +347,7 @@ return /******/ (function(modules) { // webpackBootstrap
 	            }
 	          }
 
-	          if (!matchingItems.length && ngModelCtrl.$viewValue.length) {
+	          if (!matchingItems.length && (ngModelCtrl.$viewValue.length || Object.keys(ngModelCtrl.$viewValue).length > 1)) {
 	            matchingItems = [ngModelCtrl.$viewValue];
 	          }
 	        }

dist/sc-select.min.js

@@ -190,7 +190,7 @@ export default function scSelect() {
             }
           }
 
-          if (!matchingItems.length && ngModelCtrl.$viewValue.length) {
+          if (!matchingItems.length && (ngModelCtrl.$viewValue.length || Object.keys(ngModelCtrl.$viewValue).length > 1)) {
             matchingItems = [ngModelCtrl.$viewValue];
           }
         }