Update dependencies (#57)

Changes:
* update parent POM to 16
* update plexus-shim to 0.9.0.M2
* drop junit engine, surefire pulls it in automatically

Author: cstamas

pom.xml

@@ -38,7 +38,12 @@
     <dependency>
       <groupId>org.eclipse.sisu</groupId>
       <artifactId>org.eclipse.sisu.plexus</artifactId>
-      <version>0.3.5</version>
+      <version>0.9.0.M2</version>
+    </dependency>
+    <dependency>
+      <groupId>org.eclipse.sisu</groupId>
+      <artifactId>org.eclipse.sisu.inject</artifactId>
+      <version>0.9.0.M2</version>
     </dependency>
     <dependency>
       <groupId>com.google.inject</groupId>
@@ -49,11 +54,6 @@
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter-api</artifactId>
     </dependency>
-    <dependency>
-      <groupId>org.junit.jupiter</groupId>
-      <artifactId>junit-jupiter-engine</artifactId>
-      <scope>test</scope>
-    </dependency>
   </dependencies>
 
 </project>