update build to Eclipse Tycho 0.16

Signed-off-by: Florian Thienel <florian@thienel.org>
diff --git a/org.eclipse.vex.dita/.gitignore b/org.eclipse.vex.dita/.gitignore
index ea8c4bf..6dff79c 100644
--- a/org.eclipse.vex.dita/.gitignore
+++ b/org.eclipse.vex.dita/.gitignore
@@ -1 +1,3 @@
-/target
+target
+

+src_does_not_exist