v1.0! lobby server and more

* sorry for the many new file uploads, fixing some nagging connection issues and adding some better error messaging

v1.0! 

• lobby server for multiplayer! should make it easier to play with your friends
• better light mask w/ transitions
• air bubble spawn rate decreased + air bonus increased
• fixed some map gen related crashes
• minor ux polishing

it's been an educational 2 weeks working on this project. I think splahlunking's gotten to a 'finished product' state where I can stop adding new things.  I'm probably done working on this except for bugs/crashes that get reported. most of the testing was done on my own, so please report any crashes or balance issues in multiplayer! thanks!