webui: add PaternFly css
    
    To update install/ui/css/patternfly.css you should:
    
    1. clone Bootstrap 3, Font-Awesome, Bootstrap-Select and PatternFly
       to the same parent directory as for FreeIPA (or use symlinks)
    2. checkout desired versions of each component
    3. run install/ui/util/make-patternfly.css
    4. when changing component versions, copy xxx/variables.less from each
       component to install/ui/less/xxx/ so we can use the variables in our
       less files
    
    This commit contain css made from component versions as follows:
    - PatternFly: 0.2.5
    - Bootstrap: 3.1.1
    - Bootstrap-select: 1.4.3
    - Font-Awesome: 4.0.3
    
    Reviewed-By: Endi Sukma Dewata <edewata@redhat.com>