tighten up page styles
    
    this commit does a bit to the styling of hubs.
    
    * adds a new version of the logo at the top that uses
      monsteratt rather than comfortaa as the font.
    
    * tweaks the side bookmarks / leftmenu bar to fill the entire
      space on the left side, and some tweaks to the styles that show
      the active items and the hovers
    
    * tweak the hub header, these all use the flex utilities now, rather
      than margins and floats. This allows them to be aligned a lot neater.
      the hubname at the top now is also bold -- this is how it appears in
      the mockups.
    
    * added the footer that we use elsewhere on sites that use fedora bootstrap.