added bg-color to test viewport items

Author: dhilt

test/scaffolding.js

@@ -11,7 +11,7 @@ function createHtml(settings) {
   var extra = settings.extra || '';
   return '<div ui-scroll-viewport' + viewportStyle + '>' +
     (settings.wrapper ? settings.wrapper.start : '') +
-    '<div ui-scroll="item in ' + settings.datasource + '"' +
+    '<div class="item" ui-scroll="item in ' + settings.datasource + '"' +
     adapter +
     itemStyle + bufferSize + padding + isLoading + topVisible + disabled + extra + '>' +
     template +

test/test.css

@@ -2,4 +2,5 @@
 .col0 { width: 40px; }
 .col1 { width: 80px; }
 .col2 { width: 40px; }
-.col3 { width: 50px; }
+.col3 { width: 50px; }
+.item:nth-child(odd) { background-color: #e6e6e6; }