yet another awesome breaking amethyst update

[KuSpa]

https://travis-ci.org/KuSpa/RockRaiders/jobs/478819875#L1313

[KuSpa]

with the release of amethyst 0.11 some dependiency hell (nalgebra 0.18 :confetti_ball:) was solved, but new bugs occured.

Things todo:

• [x] update 'Cargo.toml'
• [ ] fix Assethandling (thanks rendy)
• [ ] update reexports of amethyst
  • [x] specs -> ecs
• [ ] fix Transforms
• [ ] fix inputhandler (in camera movement)
• [ ] complete this list