initial commit for initialization module.
deploy init.js.
update gitignore.
move script resources to the end of document.
add skeltons of js modules.
add skeltons of js modules.
correct root location for firebase datastore.
add skeltons of js modules.
declare various constants in tetris module.
modify field holden by datastore.
declare dependency to fix extraneous ERR reproted by `npm list\'.
try to find properties contained in request.
upgrade express to 3.x, and enable it to serve seperated files.
upgrade moudles.
bugfix: missing }.
load APIs into index.html.
update package.json.
bugfix: fix initilization order of modules.