change versions to 3.0
diff --git a/core/plugins/org.eclipse.dltk.validators.externalchecker/pom.xml b/core/plugins/org.eclipse.dltk.validators.externalchecker/pom.xml
index 2954120..d17805e 100644
--- a/core/plugins/org.eclipse.dltk.validators.externalchecker/pom.xml
+++ b/core/plugins/org.eclipse.dltk.validators.externalchecker/pom.xml
@@ -10,6 +10,6 @@
   </parent>
   <groupId>org.eclipse.dltk.core</groupId>
   <artifactId>org.eclipse.dltk.validators.externalchecker</artifactId>
-  <version>1.0.0-SNAPSHOT</version>
+  <version>3.0.0-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
 </project>