otherplayer now inherits methods from player

this saves a lot of repeated code.
unfortunately otherplayer can only inherit methods and
not properties from player; trying for both breaks
Merge pull request #77 from NickStefan/taxonomy

otherplayer now inherits methods from player
particles go from off edge back to spout

turned up the spout from 10 to 200. still works
Merge pull request #78 from NickStefan/offscreenToSpout

particles go from off edge back to spout
Add login.js
Merge joingame and index.html pages; require login before initiating game
Merge branch 'leanmodal' of https://github.com/bisutun/ourglass into leanmodal