feat(loading): show helpful/funny messages, closes #147
fix(sound): main menu music not playing
fix(news): remove broken credits link
game: add reference to isProduction, closes #148
shared: no more duplicate js for client and server, shared folder
util: cleanup
loadingbar: don't hide on load
shadows: fix flattenToArrayOffset errors in console on startup

because the shadow lights were getting re-initialized each time you teleport, causing glitches
util: remove falsy roundNumber
login cookie: set one month of duration, closes #146