Icon refresh: First step towards the new Qt Creator themes

http://blog.qt.io/blog/author/didesous/ announced new designs/themes
for Qt Creator. This patch replaces many of the existing toolbar icons
with recolorizable masks for better theming support.

Change-Id: I557aa485205fe2624f33724226f698c303342b40
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>
Reviewed-by: Alessandro Portale <alessandro.portale@theqtcompany.com>

src/plugins/todo/todoitemsmodel.cpp

@@ -35,6 +35,7 @@
 #include <utils/algorithm.h>
 
 #include <utils/theme/theme.h>
+#include <utils/themehelper.h>
 
 #include <QIcon>
 
@@ -99,7 +100,7 @@ QVariant TodoItemsModel::data(const QModelIndex &index, int role) const
                 case Qt::DisplayRole:
                     return item.text;
                 case Qt::DecorationRole:
-                    return QVariant::fromValue(QIcon(item.iconResource));
+                    return QVariant::fromValue(Utils::ThemeHelper::themedIcon(item.iconResource));
             }
             break;