expend energy
running out of fuel
remove random spawn of enemies in many testsMerge branch 'master' of https://github.com/AdmiralPotato/ggj2013

Conflicts:
	Server/Web/Entity.cs
	Server/Web/Ship.cs
	Server/Web/StarSystem.cs
Merge branch 'master' of https://github.com/AdmiralPotato/ggj2013
crashes for large headings