Improve the efficiency of the tweetfilter and add another unit test for the case when all incoming tweets are filtered out.
Reduce the container width to fit smaller device sizes.
Don't display the 'no tweets' text whilst loading.
Pull the comparison function into the outer scope so it is not re-declared on every sort.
Don't sort by id by default.
Add build.js for the requirejs optimizer (r.js)
remove cruft.