Power up viewcontrollers

1. Segueing between viewcontrollers using segue way in storyboard instead of doing navigation viewcontroller. Although the memory issue is not fixed, data between viewcontrollers are easier to pass by using segues
2. The source for the memory issue are spritekit view and scene. Creating them costs a lot of memory. Now i only create them when needed instead of creating them every time during the viewcontroller initializing step
3. i cleaned up the code for three viewcontrollers
4. the bomb message is displayed correctly (instead of saying the circuit is shorted), and spanish needs to be added
5*. i logged xcode with my account but it seems Jenner is still pushing for us. I can't find anyway to change commit messages