Update glutin (to 0.15), image (to 0.19) & others

Cargo.toml

 clap = "2.29"
 env_logger = "0.5.0-rc.2"
 gl = "0.10"
-image = "0.18"
+image = "0.19"
 linked-hash-map = "0.5.0"
 log = "0.4"
 osmpbf = "0.1"
 reqwest = "0.8"
-glutin = "0.14"
+glutin = "0.15"
 toml = "0.4"
 xdg = "2.1"
 

src/main.rs

     match *event {
         Event::Awakened => Action::Redraw,
         Event::WindowEvent{ref event, ..} => match *event {
-            WindowEvent::Closed => Action::Close,
+            WindowEvent::CloseRequested => Action::Close,
             WindowEvent::MouseInput { state: ElementState::Pressed, button: MouseButton::Left, .. } => {
                 input_state.mouse_pressed = true;
                 Action::Nothing