correct a bug in the history command of cmb
correct the usage of proxy, timeout and ssl verification in browser2
change max_retries to 2
[popolemploi] fix : site changed
certhash is not used either at the moment
the ssl check option is not used anymore
cookie is not used anymore
headers is not used anymore..
delete the certificate in the cmb module
delete useless imports
remove dependencie to weboob.tools.parsers
Test "if a is None", not only "if a"
Convert dresdenwetter to browser2
NotAvailable and NotLoaded should not be callable
Rewrite the empty function according to the new NotLoaded

and the new NotAvailableType...
NotAvailable can be now directly set
piratebay: yet another domain change