try saving power by only drawing when we are actually visible
-rw-r--r-- 0 .gitignore
-rw-r--r-- 210 LICENSE
-rw-r--r-- 1440 README
-rw-r--r-- 1204 TODO
-rw-r--r-- 4895 index.html
drwxr-xr-x - js
-rw-r--r-- 240 manifest.appcache
-rw-r--r-- 631 manifest.webapp
drwxr-xr-x - style