Web UI development environment directory structure and configuration
    
    Added symbolic links which points to directories which should contain files of
    Web UI layers. By changing those links we can switch between debugging (using
    source codes) or testing (compiled version).
    
    util/change-profile.sh utility serves for changing symbolic links in js/ dir
    and therefore for switching between debugging and testing.
    
    Default configuration for development is:
     * freeipa source files
     * libs as in git
     * compiled Dojo layer
    
    https://fedorahosted.org/freeipa/ticket/112