4.3

Merged 4.3 branch with master last changes. 
Added buildout and robot tests. 
Don't skip password validation for manager.
Skip password validation for generated password.
Added french translation. Corrected UnicodeDecodeError.

This shouldn't be needed. I did work to ensure that all you need to do Plone 4.3 is create the PAS plugins. If further monkey patching in Plone is needed then there is a bug in Plone and should be solved there.