upgrade webjars which improved handling of invalid URLs (changes: http://github.com/webjars/webjars-servlet-2.x/pull/12)
diff --git a/app/pom.xml b/app/pom.xml
index 7eb920e..ef4bad1 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -322,7 +322,7 @@
         <dependency>
             <groupId>org.webjars</groupId>
             <artifactId>webjars-servlet-2.x</artifactId>
-            <version>1.4</version>
+            <version>1.5</version>
         </dependency>
 
         <dependency>