increment version

adding entry in changelogs

very small improvements on ppolicy.simple

adding special treatment if field is not required for ppolicy

modifying the templates to include custom ppolicy error message

adding piece of javascript to display custom ppolicy messages

it's more logical to do the auth check before anything...

changing http returns for checkppolicy

update validator.js

adding notification for user deletion

adding tags to changelog entries

fill changelog

adding notification after an action is performed

fix logic inversion in travis.yml

traying to fix travis.yml... again

fix travis.yml

trying to remove preparation for pep8 check

add unit test for login failure

fix service unavailable template

adding unit tests for demo backend

better exceptions handling for demo backend

fix pep8

better unit tests on authentication

cleaner way to merge user's attributes from different backends

fix decorator handling the exceptions

slightly cleaner way to handle templates loading

pep8 compliance

small code reorganization ...

* extraction of exception decorator
* extraction of log handling

Update README.rst

increment version number in doc