general balance (also removed some unused files)

js/index.js

@@ -2,6 +2,18 @@
 /* TODO:  *******************************************
 *****************************************************
 
+field power up effects
+  field produces a whirlpool effect of force around player
+  field allows player to hold and throw living mobs
+  field puts a circle of "something" each time right click is pressed
+    null gravity
+    damage
+    high friction
+
+other power up ideas
+  killing a mob triggers:  a spore bullet
+    maybe you could replace the power method with a new one to get this to work
+
 have mob acceleration and look frequency scale with difficulty level
   this will speed up the responses of later mobs
   this should provide a feeling of difficulty without inflating the life of mobs