Switch to 2018 edition

Fixes https://github.com/teltek/gst-plugin-ndi/issues/15

Cargo.toml

@@ -5,6 +5,7 @@ authors = ["Ruben Gonzalez <rubenrua@teltek.es>", "Daniel Vilar <daniel.peiteado
 repository = "https://github.com/teltek/gst-plugin-ndi"
 license = "LGPL"
 description = "NewTek NDI Plugin"
+edition = "2018"
 
 [dependencies]
 glib = { version = "0.8.0", features = ["subclassing"] }

src/lib.rs

@@ -18,9 +18,9 @@ pub mod ndisys;
 mod ndivideosrc;
 pub mod receiver;
 
-use ndi::*;
-use ndisys::*;
-use receiver::*;
+use crate::ndi::*;
+use crate::ndisys::*;
+use crate::receiver::*;
 
 use std::collections::HashMap;
 use std::time;

src/ndi.rs

@@ -1,4 +1,4 @@
-use ndisys::*;
+use crate::ndisys::*;
 use std::ffi;
 use std::mem;
 use std::ptr;

src/ndiaudiosrc.rs

@@ -1,6 +1,5 @@
 use glib;
 use glib::subclass;
-use glib::subclass::prelude::*;
 use gst;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
@@ -12,15 +11,15 @@ use gst_base::subclass::prelude::*;
 use std::sync::Mutex;
 use std::{i32, u32};
 
-use connect_ndi;
-use ndisys;
+use crate::connect_ndi;
+use crate::ndisys;
 
-use AudioReceiver;
-use Receiver;
-use ReceiverControlHandle;
-use ReceiverItem;
-use TimestampMode;
-use DEFAULT_RECEIVER_NDI_NAME;
+use crate::AudioReceiver;
+use crate::Receiver;
+use crate::ReceiverControlHandle;
+use crate::ReceiverItem;
+use crate::TimestampMode;
+use crate::DEFAULT_RECEIVER_NDI_NAME;
 
 #[derive(Debug, Clone)]
 struct Settings {

src/ndivideosrc.rs

@@ -1,28 +1,26 @@
 use glib;
 use glib::subclass;
-use glib::subclass::prelude::*;
 use gst;
 use gst::prelude::*;
 use gst::subclass::prelude::*;
 use gst_base;
 use gst_base::prelude::*;
 use gst_base::subclass::prelude::*;
-
 use gst_video;
 
 use std::sync::Mutex;
 use std::{i32, u32};
 
-use ndisys;
+use crate::ndisys;
 
-use connect_ndi;
+use crate::connect_ndi;
 
-use Receiver;
-use ReceiverControlHandle;
-use ReceiverItem;
-use TimestampMode;
-use VideoReceiver;
-use DEFAULT_RECEIVER_NDI_NAME;
+use crate::Receiver;
+use crate::ReceiverControlHandle;
+use crate::ReceiverItem;
+use crate::TimestampMode;
+use crate::VideoReceiver;
+use crate::DEFAULT_RECEIVER_NDI_NAME;
 
 #[derive(Debug, Clone)]
 struct Settings {