change to Vaadin 7.7.13
diff --git a/pom.xml b/pom.xml
index 5d1fbe4..666ee5e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -123,7 +123,7 @@
 		<osbp.stage.p2.keep.old>false</osbp.stage.p2.keep.old>
 
 		<!-- Dependencies Version -->
-		<vaadin.version>7.7.6</vaadin.version>
+		<vaadin.version>7.7.13</vaadin.version>
 		<vaadin.mobile.version>4.1.0</vaadin.mobile.version>
 		<vaadin.plugin.version>7.7.6</vaadin.plugin.version>