Extra bootstrapping code!

A new font at 12pt is specified by default, love.physics.setMeter is called, and setMode is overridden to force a resize event.
A `__replicated` flag is added to all tdreplicated objects
Players now have an id field and automatically add themselves to the world when created.
slime73 recommended use of love.graphics.getDimensions() instead of love.window.getDimensions()