Fixed links to images in config and migration pages
    
    https://fedorahosted.org/freeipa/ticket/1932
    
    Description of problem:
    Title is missing while configuring browser for the first time.
    
    Actual results:
    There is no title on this screen. I noticed it only on step 8 and later so I am not sure if title is also missing earlier at step 6 or not.
    
    Expected results:
    Title "Identity Management" is always present.
    
    Fixed:
     * modified paths to images
     * fixed padding in ssbrowser.html
     * moved browser icons to ui folder
     * deleted unused images in html and migration folders (they are already in ui folder, and weren't deployed)
    
    whitespaces