Implement twitter feed

- use the ticker setup
- write some code to make it responsive

Conflicts:
	css/screen.css
	sass/screen.sass
Implement new UX to twitter feed

- Show only top 2 always
- Poll every 30 secs (only allowed a max of 150/hour)
- If more new tweets show link to twitter with count

Conflicts:
	css/screen.css
	index.html
	sass/screen.sass
Changed the twitter feed title to Updates. Styled the #moreTweets block.
Implement now card

Conflicts:
	index.html
Implement Coming up and Now cards
Simplify logic for happening now
Auto size now card with tweets

Conflicts:
	css/screen.css
resize now on window resize
Scroll only the events list in now card

Conflicts:
	css/screen.css
Adjusted the "Happening Now" height and added a Program button.
- Removed the original "Program" block.
- Re-ordered the blocks on the home page
Changed the output of the Now block
- current (now) events start with "until <endtime>"
- upcoming events start with starttime
- changed the colors of the starttime, endtime and location fields