release 4.0.0-rc.6 (#571)

Author: MarkWolters

pom.xml

@@ -41,7 +41,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.install.skip>true</maven.install.skip>
-        <revision>4.0.0-rc.6-SNAPSHOT</revision>
+        <revision>4.0.0-rc.6</revision>
     </properties>
     <modules>
         <module>jvector-base</module>