fix default configuration

fixing default configuration for AD

fix configuration for javascript autofill

better configuration example

fix typo in default configuration

fix default configuration

implementing weight and normalizing each kind of attributes

adding weight to order fields

adding attributes for search

fix default configuration

change backend key name in attributes + methods ...

* adding get_backends
* adding get_selfattributes (attributes users can change themselves)
* adding unit tests
* rename backend-attributes -> bakends (for homogeneity with role.yml)

adding checks for mandatory elements of attributes.yml

begin attributes handling manipulation

configuration formatting

adding different type of parameters

adding skeleton to handle form attributes