fix: use vaadin7-compatible portal-utils-lib

Author: wow-such-code

pom.xml

@@ -6,10 +6,10 @@
 	<parent>
 		<groupId>life.qbic</groupId>
 		<artifactId>portlet-parent-pom</artifactId>
-		<version>3.1.0</version>
+		<version>3.1.4</version>
 	</parent>
 	<artifactId>user-db-portlet</artifactId>
-	<version>1.8.1</version>
+	<version>1.8.2</version>
 	<name>User Database Portlet</name>
 	<url>http://github.com/qbicsoftware/user-db-portlet</url>
 	<packaging>war</packaging>
@@ -56,17 +56,17 @@
 		<dependency>
 			<groupId>life.qbic</groupId>
 			<artifactId>portal-utils-lib</artifactId>
-			<version>2.2.1</version>
+			<version>1.6.0</version>
 		</dependency>
 		<dependency>
 			<groupId>life.qbic</groupId>
 			<artifactId>core-utils-lib</artifactId>
-			<version>1.7.0</version>
+			<version>1.7.1</version>
 		</dependency>
 		<dependency>
 			<groupId>life.qbic</groupId>
 			<artifactId>openbis-client-lib</artifactId>
-			<version>1.4.0</version>
+			<version>1.4.1</version>
 		</dependency>
 		<dependency>
 			<groupId>life.qbic</groupId>