Format everything and add rustfmt to travis (#951)

* Format everything and add rustfmt to travis

* Remove extern crate winit from examples and add force_multiline_blocks

* Format the code properly

* Fix inconsistent period in PULL_REQUEST_TEMPLATE.md

* Only run rustfmt on nightly

* Travis fixings

src/platform_impl/macos/mod.rs

@@ -15,16 +15,13 @@ mod window_delegate;
 
 use std::{fmt, ops::Deref, sync::Arc};
 
-use crate::{
-    event::DeviceId as RootDeviceId, window::WindowAttributes,
-    error::OsError as RootOsError,
-};
 pub use self::{
     event_loop::{EventLoop, EventLoopWindowTarget, Proxy as EventLoopProxy},
     monitor::MonitorHandle,
-    window::{
-        Id as WindowId, PlatformSpecificWindowBuilderAttributes, UnownedWindow,
-    },
+    window::{Id as WindowId, PlatformSpecificWindowBuilderAttributes, UnownedWindow},
+};
+use crate::{
+    error::OsError as RootOsError, event::DeviceId as RootDeviceId, window::WindowAttributes,
 };
 
 #[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
@@ -48,7 +45,7 @@ pub struct Window {
 #[derive(Debug)]
 pub enum OsError {
     CGError(core_graphics::base::CGError),
-    CreationError(&'static str)
+    CreationError(&'static str),
 }
 
 unsafe impl Send for Window {}