Merge pull request #82 from bvssvni/master

Upgraded to latest Rust
Update for traits removal in freetype-sys
Merge pull request #83 from tomaka/master

Update for traits removal in freetype-sys
Fix for latest Rust
Merge pull request #85 from nstoddard/master

Fix for latest Rust
Fixed shadowed lifetimes

Closes https://github.com/PistonDevelopers/freetype-rs/issues/84