New Homepage with Like Box and other Fixes

moved open/closed to base.html, so it shows on all sites; and resized it (Image 1)

added Facebook like box (section class 5) to index.html (Image 2)

moved Visit Us (new section class 6) and removed map image from index.html (Image 2)

created def _time() in main.py which returns if the hackerdojo is open(this was copied
from IndexHandler); This is needed for open/closed to work correctly in all sites

Resized the height of sections one through five so it fits with height of the like box; added section six in hackerdojo.css

Kept the old index.html als index-old.html

Image 1: 
![image_1](https://cloud.githubusercontent.com/assets/8422692/3943373/b32462d2-259c-11e4-89e2-2fa9170ff3c8.jpg)

Image 2:
![image_2](https://cloud.githubusercontent.com/assets/8422692/3943372/b323f806-259c-11e4-884f-5efa5bbdf765.jpg)