Prototype polishing finished

Prototype page:
    - got descriptions
    - got a background
    - got new indicators, with a car image and new icons
    - LDWS stuff is there and placed on-page, but hidden because I didn't
      know what to do with it.
    - also got instructions and explanations of the prototype
    - fixed issue of LKS and LCS activating/deactivating didn't work
      properly if the car was already departing the lane
    - added sound icon, and manual override icon
    - refined manual override behavior, so it only activates if the system
      is attempting to correct.
Hider.js:
    - added an initial hide class that is not hidden when loading the
      page, but should act just like the rest otherwise
magic-bootstrap:
    - fixed bad reference to the glyphicons