script made by Julien.

There is following modifications :
- code is moved to ERP5Type/tests
- updater is not kept since the update of code will be
  managed at upper level (erp5 testnode)
- use argparse instead of optparse

runTestSuite then will be called by erp5 testnode or can
be called manually

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@45579 20353a03-c40f-0410-a6d1-a30d3c3de9de