Merge pull request #1 from bvssvni/master

First commit
Merge pull request #2 from bvssvni/master

Updated to latest Piston
Merge pull request #3 from bvssvni/master

Updated 'user_input' to support GLFW
Merge pull request #4 from bvssvni/master

Using for loop in 'image_iter' example
Merge pull request #6 from bvssvni/master

Upgraded to latest Rust
Added how to build and run examples

Closes https://github.com/PistonDevelopers/piston-examples/issues/7
Fix asset paths for cargo-built executables

Building the example executables with cargo, the binaries are placed in a
"target" folder, not "bin". Thus, the assets can not be found by such
executables. Pointing the AssetStore to "../bin/assets" fixes this.
Merge pull request #9 from aepsil0n/fix_asset_paths

Fix asset paths for cargo-built executables
Upgrade to latest Rust + Rust-Empty