Update the library (not the examples) to the last rust-nighly.
Update the library (not the examples) to the last rust-nighly.

Version of rustc: rustc 1.0.0-nightly (123a754cb 2015-03-24).

sebcrozet/nphysics,BenBergman/nphysics,MichaelRiss/nphysics,sebcrozet/nphysics,tempbottle/nphysics,tempbottle/nphysics