Web UI password is going to expire in n days notification
    
    This patch adds pending password expiration notification support to Web UI. When user's password is going to expire in less or equal than configure days a bold red text 'Your password expires in N days.' and a link 'Reset your password' are shown in Web UI's header (on the left next to 'Logged in as...').
    
    Clicking on 'Reset your password link' opens IPA.user_password_dialog. Successful reset of own password will reload user's information (whoami) and update header (it will most likely hide the warning and link).
    
    https://fedorahosted.org/freeipa/ticket/2625