Added Swift 4.1 support by fixing warnings (#34)

.swift-version

@@ -1 +1 @@
-4.0.3
+4.1

.travis.yml

@@ -21,10 +21,17 @@ matrix:
     - os: linux
       dist: trusty
       sudo: required
+    - os: linux
+      dist: trusty
+      sudo: required
+      env: SWIFT_SNAPSHOT=4.0.3
+    - os: osx
+      osx_image: xcode9.3
+      sudo: required
     - os: osx
       osx_image: xcode9.2
       sudo: required
-
+      env: SWIFT_SNAPSHOT=4.0.3
 before_install:
   - git clone https://github.com/IBM-Swift/Package-Builder.git
 

Tests/KituraWebSocketTests/KituraTest+Frames.swift

@@ -170,8 +170,11 @@ extension KituraTest {
             intMask = arc4random()
         #endif
         var mask: [UInt8] = [0, 0, 0, 0]
+        #if swift(>=4.1)
+        UnsafeMutableRawPointer(mutating: mask).copyMemory(from: &intMask, byteCount: mask.count)
+        #else
         UnsafeMutableRawPointer(mutating: mask).copyBytes(from: &intMask, count: mask.count)
-
+        #endif
         buffer.append(&mask, length: mask.count)
 
         let payloadBytes = withPayload.bytes.bindMemory(to: UInt8.self, capacity: withPayload.length)
@@ -207,7 +210,11 @@ extension KituraTest {
                 payloadLengthUInt16 = CFSwapInt16HostToBig(tempPayloadLengh)
             #endif
             let asBytes = UnsafeMutablePointer(&payloadLengthUInt16)
+            #if swift(>=4.1)
+            (UnsafeMutableRawPointer(mutating: bytes)+length+1).copyMemory(from: asBytes, byteCount: 2)
+            #else
             (UnsafeMutableRawPointer(mutating: bytes)+length+1).copyBytes(from: asBytes, count: 2)
+            #endif
             length += 3
         } else {
             bytes[1] = 127
@@ -219,7 +226,11 @@ extension KituraTest {
                 payloadLengthUInt32 = CFSwapInt32HostToBig(tempPayloadLengh)
             #endif
             let asBytes = UnsafeMutablePointer(&payloadLengthUInt32)
+            #if swift(>=4.1)
+            (UnsafeMutableRawPointer(mutating: bytes)+length+5).copyMemory(from: asBytes, byteCount: 4)
+            #else
             (UnsafeMutableRawPointer(mutating: bytes)+length+5).copyBytes(from: asBytes, count: 4)
+            #endif
             length += 9
         }
         if withMasking {