redis 4 (#148)

* redis 4

* ci updates

* use swift 5

* use vapor swift 5.1 images

* install openssl

Author: tanner0101

.gitignore

@@ -7,4 +7,5 @@ Package.resolved
 .DS_Store
 .DS_Store?
 DerivedData
+.swiftpm
 

Package.swift

@@ -1,20 +1,17 @@
-// swift-tools-version:4.0
+// swift-tools-version:5.1
 import PackageDescription
 
 let package = Package(
-    name: "Redis",
+    name: "redis",
     products: [
         .library(name: "Redis", targets: ["Redis"])
     ],
     dependencies: [
-      // 🌎 Utility package containing tools for byte manipulation, Codable, OS APIs, and debugging.
-      .package(url: "https://github.com/vapor/core.git", from: "3.0.0"),
-
-        // Core services for creating database integrations.
-        .package(url: "https://github.com/vapor/database-kit.git", from: "1.0.0")
+        .package(url: "https://github.com/vapor/redis-kit.git", from: "1.0.0-alpha"),
+        .package(url: "https://github.com/vapor/vapor.git", from: "4.0.0-alpha.1.4"),
     ],
     targets: [
-      .target(name: "Redis", dependencies: ["Async", "Bits", "DatabaseKit", "Debugging", "COperatingSystem"]),
+      .target(name: "Redis", dependencies: ["RedisKit", "Vapor"]),
         .testTarget(name: "RedisTests", dependencies: ["Redis"])
     ]
 )