restructered directory and added files for nodejs/express server
removed settings file from tracking
added jquery as a dependency
removed jquery from dependency
fixed a bug: changed process.env.port to process.env.PORT
fix an issue where plane units stopped being drawn after a while
fix game starting before unit images finish loading
fixed a bug from the previous patch where game would not load
added loading screen while images are loading
added loading gif
Merge branch 'master' of github.com:cww0909/microgame