Merge pull request #56 from bvssvni/master

Upgraded to latest Rust-Empty
Merge pull request #57 from bvssvni/master

Updated to latest Rust + Cargo
Merge pull request #58 from bvssvni/master

Added crate_name attribute to make it work with Rust-Empty
Merge pull request #59 from bvssvni/master

Update to latest Rust
Upgraded to latest Piston

* Ignored Cargo.lock
* Removed unused readme field in Cargo.toml
* Updated examples