fixed some warnings in the manifests

Signed-off-by: Florian Thienel <florian@thienel.org>
diff --git a/sourceediting/plugins/org.eclipse.wst.xml.vex.docbook/build.properties b/sourceediting/plugins/org.eclipse.wst.xml.vex.docbook/build.properties
index 9afb186..25ee170 100644
--- a/sourceediting/plugins/org.eclipse.wst.xml.vex.docbook/build.properties
+++ b/sourceediting/plugins/org.eclipse.wst.xml.vex.docbook/build.properties
@@ -3,8 +3,7 @@
                .,\
                plugin.properties,\
                META-INF/,\
-               4.5/,\
-               bin/
+               4.5/
                
 src.includes = styles/,\
                4.5/