Added the maven WAR plugin to the plugin dependencies

Change-Id: I9451be8f1096fe5c53a1a7be34e786ae4089f6aa
Signed-off-by: Dieter Scholz <disc@code2bytes.org>
Added the maven-clean-plugin to the plugin dependencies

Change-Id: I770645409fc8a6c307967a8ecb89883636b26401
Signed-off-by: Dieter Scholz <disc@code2bytes.org>