Awesome upgrade to Vapor4 🚀

Closes #1, #2

Package.swift

@@ -1,28 +1,21 @@
-// swift-tools-version:4.2
-// The swift-tools-version declares the minimum version of Swift required to build this package.
+// swift-tools-version:5.1
 
 import PackageDescription
 
 let package = Package(
     name: "WS",
+    platforms: [
+       .macOS(.v10_15)
+    ],
     products: [
-        // Products define the executables and libraries produced by a package, and make them visible to other packages.
-        .library(
-            name: "WS",
-            targets: ["WS"]),
+        .library(name: "WS", targets: ["WS"]),
     ],
     dependencies: [
-        // 💧 A server-side Swift web framework.
-        .package(url: "https://github.com/vapor/vapor.git", from: "3.0.0"),
+        .package(url: "https://github.com/vapor/vapor.git", from: "4.0.0-beta.2"),
+        .package(url: "https://github.com/vapor/websocket-kit.git", from: "2.0.0-beta.2")
     ],
     targets: [
-        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
-        // Targets can depend on other targets in this package, and on products in packages which this package depends on.
-        .target(
-            name: "WS",
-            dependencies: ["Vapor"]),
-        .testTarget(
-            name: "WSTests",
-            dependencies: ["WS", "Vapor"]),
+        .target(name: "WS", dependencies: ["Vapor", "WebSocketKit"]),
+        .testTarget(name: "WSTests", dependencies: ["WS", "WebSocketKit"]),
     ]
 )