Added maintainers
Set correct GL version
Merge pull request #14 from kazimuth/versionhint

Set correct GL version
Expose more GLFW internals

Allows creating the game window with an already-created GLFW window. It will
query the settings it can from that. Also makes the window/glfw fields public,
to allow users to do things that the GameWindow design might not account for.

Closes #15
Remove use of deprecated push_back
Merge pull request #16 from cmr/more-flexibility

More flexibility
Fixed Cargo settings

* Ignore Cargo.lock
* Removed unused readme field in Cargo.toml
Merge pull request #17 from bvssvni/master

Fixed Cargo settings
Implemented `close`

Closes https://github.com/PistonDevelopers/glfw_game_window/issues/18
Merge pull request #19 from bvssvni/master

Implemented `close`
Added OpenGL version and profile hints