Solved a minor invalid uri which avoided the application from being started offline.

Kieker.WebGUI/src/main/webapp/WEB-INF/spring-database-config.xml

@@ -3,7 +3,7 @@
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:jdbc="http://www.springframework.org/schema/jdbc"
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
-                           http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd">
+                           http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd">
 
     <!-- The database and the transaction manager. -->
     <bean id="userDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">