Use the newest version.

1.3.0 has building process which has been found to be cumbersome on some platforms.

stack/erp5/buildout.cfg

@@ -566,7 +566,7 @@ Acquisition = 2.13.7nxd001
 Products.DCWorkflow = 2.2.3nxd002
 
 # Known version with works
-numpy = 1.3.0
+numpy = 1.6.2
 # Patched version which support python 2.6
 PyXML = 0.8.4nxd001
 # modified version that works fine for buildout installation