Added warning message when console is opened, this is in preparation for alpha.
Added a new background image. Restored random backgrounds on launch (for now).
Changed the overlay dismiss/cancel buttons from anchors to buttons.
The player count on the landing page is now functional. If the server cannot be reached, the label and value will change to SERVER and OFFLINE, respectively. This behavior can be modified.
Temp folder is deleted when minecraft is closed. If the Node.js process ends abruptly, the folder will not delete. As a dirty way to counter this, the directory we extract native files to is cleaned in the preloader. Maybe we'll come up with a more elegant solution in the future.
