change javascript animation <-> change according to bot's emotions

[lawrencelm]

use NLP API to change js animation according to larry bot's emotion

1. figure out how to change speed of animation (done. solution: change var npoints I created in larrybody)
2. integrate sentiment analysis (alchemy API?) with the bot's replies
3. negative feelings -> faster. positive -> slower. neutral -> slightly faster. Timing = formula's timing

Note: how to integrate the sentiment number with the animation speed? Metaprogramming or global