add github and yammer links
use 60 sec cache
Merge branch 'master' of git://github.com/olliahonen/futucode2013 into olliahonen-master

Conflicts:
	static/index.html
note about Yammer API limitation
fetch paginated JSON messages from Yammer and combine the data
remove mention about Yammer API problem
remove empty language from data
add fun facts
add placeholder "?" to fun facts
Readme
Grammar fix