Merge pull request #12 from brichter89/master

Improved checks for unique / valid player / ship names
Ships now have an energy level. Turning and accelerating uses energy. A ship without energy can not turn or accelerate and decelerate.
Ships now can travel faster than light ;-)
Buttons to roll the ship
Fixed jshint warnings
Renamed myError to customError
Fixed tests
Map now displays X, Y in addition to the ships Y axis with little arrows
Fixed roll direction
The map is now an angular directive
Fixed bug, removed accidentaly included character
Map now shows a label for the own ship
Fixed bug in serializing other ships
Labels for all ships on the map
Camera now looks at the center of the map
Removed unneeded dependencies
Space stations FTW!
All ships start at a random position, even if they are added later to the game
Only the player's own ship is displayed with orientation markers
Fixed deprecation warnings