TAVERNA-1060 Newer maven parent (thus appassembler)

version now given in <pluginManagement>
diff --git a/pom.xml b/pom.xml
index 8c813ba..a4bdfd2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.taverna</groupId>
     <artifactId>apache-taverna-parent</artifactId>
-    <version>3-incubating</version>
+    <version>4-incubating-SNAPSHOT</version>
   </parent>
   <groupId>org.apache.taverna.language</groupId>
   <artifactId>apache-taverna-language</artifactId>
diff --git a/taverna-scufl2-examples/pom.xml b/taverna-scufl2-examples/pom.xml
index 70389af..a4dea6d 100644
--- a/taverna-scufl2-examples/pom.xml
+++ b/taverna-scufl2-examples/pom.xml
@@ -68,7 +68,6 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>appassembler-maven-plugin</artifactId>
-        <version>1.10</version>
         <executions>
           <execution>
             <id>assemble</id>
diff --git a/taverna-tavlang-tool/pom.xml b/taverna-tavlang-tool/pom.xml
index 6eb3683..60aade7 100644
--- a/taverna-tavlang-tool/pom.xml
+++ b/taverna-tavlang-tool/pom.xml
@@ -129,7 +129,6 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>appassembler-maven-plugin</artifactId>
-        <version>1.1.1</version>
         <executions>
           <execution>
             <id>assemble</id>