Emit a signal when parsing is finished after updating source files.

Change-Id: I8a8878c420c0f8d24db16d606aace42519ac3047
Reviewed-on: http://codereview.qt.nokia.com/1151
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Bill King <bill.king@nokia.com>

src/libs/cplusplus/ModelManagerInterface.h

@@ -148,6 +148,7 @@ public:
 
 Q_SIGNALS:
     void documentUpdated(CPlusPlus::Document::Ptr doc);
+    void sourceFilesRefreshed(const QStringList &files);
 
 public Q_SLOTS:
     virtual void updateModifiedSourceFiles() = 0;