Arcade Mode and Multiplayer Fixes [v0.863]

We hosted an event in Seattle recently to play test the new Arcade Mode before we hit the next round of conventions. I'm glad that we did, because we were able to find a bunch of obnoxious bugs (that OF COURSE I incidentally crushed the next week).

Here they are:

• In Arcade Mode, players are starting off with their ships being the same color. SUPER CONFUSING. For now, on a player's screen, they will always appear blue and the enemy red.
• Builders were not being spawned for players in Arcade Mode... yeah, good luck winning a game without those guys in there!
• Menu sequence initiates a lock state: Defeat -> Select a Unit -> Quit -> Stuck (Won't Quit)
• Load button if spammed (thanks to our hyperactive friend Brandon for finding this) causing load times to lock up and game will never load.
• Selecting a new menu item will double load whatever has already been selected.
• A player can get stuck in the Lobby for Arcade Mode, as there is no way to transition back to Start Screen, other than quitting the game completely.
• Fighter hologram is showing up BACKWARDS. (Yeah, how does that happen?)
• The UI layering of the Lobby Room Name is showing up behind the map designs. Just funky looking.
• Keyboard is also laying behind the maps when you rename a room. Oops.
• The ship builder pedestal is outside of the Fleetbuilder bounds... blowing up everything instantly upon spawn.
• Loaders are spawning players on top of each other roughly 50% of the time (silly race condition).
• There is no way to Deselect the Builder from the CCV1 (unless of course you know there is a button). I added a menu item for this on the CCV1 for first-time players.
• Arcade Mode UI scaling is all messed up on the flat screen.
• There is no way for the Arcade operator to quit the game for the player. Added a 2D Quit button to the flat screen.
• Increased the damage radius of Fighters so that they don't shoot past Splitters anymore.