Update getstations.js

Sorts by line color first, then direction. Added class to station divs.
Update index.html
Merge pull request #5 from cteye/patch-6

Update getstations.js
Merge pull request #6 from cteye/patch-7

Update index.html
Merge pull request #7 from savereykjavik/master

Server setup
Update getstations.js

Added Buttons
Merge pull request #8 from cteye/patch-8

Update getstations.js
Update getstations.js

Added filtering. Once again points to the server
Merge pull request #9 from cteye/patch-9

Update getstations.js