Fix reinstallation of BT with local modifications in workflow_chain...

Fix reinstallation of BT with local modifications in workflow_chain (test_165_checkCopyBuildInstall)
  * _importFile and build are now consistent: they use same keys and 
values are list.
  * various optimisation, and coding style.
  * Naming convention compliancy.
  * replace self.__class__.__name__[:-12]] by self.getTemplateTypeName()
atomic patch which can not be splitted.



git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33767 20353a03-c40f-0410-a6d1-a30d3c3de9de