Pongball 2017-04-25_f9838f0

Description
This build features @lightsoda's camera fixes, @jctwood's obstacle network sync work, @fierydrake's start-of-round countdown, @fierydrake's ball physics tweaks, @Cheeseness' work on credits and about screens, and @osse101 work fixing a bunch of misc bugs!

Instructions
Select a multiplayer mode (local or online). If online play is selected, create a host or join an existing game as a client.

Choose desired model variants and table layout and click Load Scene. Select the paddle you would like to control (1 for left, 2 for right) and click Proceed.

Use Up and Down cursor keys to control paddle movement. Use Ctrl to activate the slingshot paddle's effect. Use Ctrl and Alt to control flippers. Press Space to trigger player powers (single use, randomly given every 30 seconds)

Known Issues
Please note that this is still a very early build - the game is still missing many important mechanics (such as scoring goals)!

• Network sync of paddle location is not reliable
• Network sync of ball location is not reliable
• Player controlled paddles will sometimes move on their own
• Clicking Load Scene without selecting a table or model variants will result in models not being loaded
• The Reset ball position button does not work for clients in networked multiplayer
• Ramps are difficult to hit the ball into
• Paddle abilities and flipper controls use the same keys
• Obstruct power does not block paddles
• Flippers are not present in all obstacle asset variants
• Flipper controls affect both players' flippers
• Paddle movement is not final
• Ball physics are not final
• Table layouts and obstacle behaviours are not final