assorted fixes

oauth: Fix indentation / PSR-2

consent: general improvements

Fix duplicate function

ldap_connect() can return false too

consentAdmin: Extract CSS/JS from template file

Implement "Remember my Organization" in multiple-ldap

This new feature allows the users to have a checkbox in the login form
which works in the same way than "Remember my username" but for the
organization selected in the dropdown

Improve documentation for cardinality authproc filter

CREATE TABLE may return 0 on some DBMS, but false is always an indicator something's wrong