Merge branch 'development' into swift2.3

* development:
  bump version
  add check for bad paths
  Fix socketpollable crashing
  make nonobjc
  More privatisation
  Making publicKeyChainForTrust() private.
  api extensions doesn't seem to fail for me
  update readme
  don't use api extensions only

README.md

@@ -88,21 +88,21 @@ Carthage
 -----------------
 Add this line to your `Cartfile`:
 ```
-github "socketio/socket.io-client-swift" ~> 6.1.5 # Or latest version
+github "socketio/socket.io-client-swift" ~> 6.1.6 # Or latest version
 ```
 
 Run `carthage update --platform ios,macosx`.
 
-CocoaPods 0.36.0 or later (iOS 8+)
+CocoaPods 1.0.0 or later
 ------------------
 Create `Podfile` and add `pod 'Socket.IO-Client-Swift'`:
 
 ```ruby
-source 'https://github.com/CocoaPods/Specs.git'
-platform :ios, '8.0'
 use_frameworks!
 
-pod 'Socket.IO-Client-Swift', '~> 6.1.5' # Or latest version
+target 'YourApp' do
+    pod 'Socket.IO-Client-Swift', '~> 6.1.6' # Or latest version
+end
 ```
 
 Install pods:
@@ -121,7 +121,7 @@ import SocketIOClientSwift
 Objective-C:
 
 ```Objective-C
-#import <SocketIOClientSwift/SocketIOClientSwift-Swift.h>
+@import SocketIOClientSwift;
 ```
 
 CocoaSeeds
@@ -130,7 +130,7 @@ CocoaSeeds
 Add this line to your `Seedfile`:
 
 ```
-github "socketio/socket.io-client-swift", "v6.1.5", :files => "Source/*.swift" # Or latest version
+github "socketio/socket.io-client-swift", "v6.1.6", :files => "Source/*.swift" # Or latest version
 ```
 
 Run `seed install`.

Socket.IO-Client-Swift.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
   s.name         = "Socket.IO-Client-Swift"
   s.module_name  = "SocketIOClientSwift"
-  s.version      = "6.1.5"
+  s.version      = "6.1.6"
   s.summary      = "Socket.IO-client for iOS and OS X"
   s.description  = <<-DESC
                    Socket.IO-client for iOS and OS X.
@@ -14,7 +14,7 @@ Pod::Spec.new do |s|
   s.ios.deployment_target = '8.0'
   s.osx.deployment_target = '10.10'
   s.tvos.deployment_target = '9.0'
-  s.source       = { :git => "https://github.com/socketio/socket.io-client-swift.git", :tag => 'v6.1.5' }
+  s.source       = { :git => "https://github.com/socketio/socket.io-client-swift.git", :tag => 'v6.1.6' }
   s.source_files  = "Source/**/*.swift"
   s.requires_arc = true
   # s.dependency 'Starscream', '~> 0.9' # currently this repo includes Starscream swift files

Source/SSLSecurity.swift

@@ -55,7 +55,7 @@ public class SSLSecurity : NSObject {
     
     var isReady = false //is the key processing done?
     var certificates: [NSData]? //the certificates
-    var pubKeys: [SecKeyRef]? //the public keys
+    @nonobjc var pubKeys: [SecKeyRef]? //the public keys
     var usePublicKeys = false //use public keys or certificate validation?
     
     /**
@@ -240,7 +240,7 @@ public class SSLSecurity : NSObject {
      
      - returns: the public keys from the certifcate chain for the trust
      */
-    func publicKeyChainForTrust(trust: SecTrustRef) -> [SecKeyRef] {
+    @nonobjc func publicKeyChainForTrust(trust: SecTrustRef) -> [SecKeyRef] {
         let policy = SecPolicyCreateBasicX509()
         let keys = (0..<SecTrustGetCertificateCount(trust)).reduce([SecKeyRef]()) { (keys: [SecKeyRef], index: Int) -> [SecKeyRef] in
             var keys = keys

Source/SocketEngine.swift

@@ -24,7 +24,7 @@
 
 import Foundation
 
-public final class SocketEngine : NSObject, SocketEnginePollable, SocketEngineWebsocket {
+public final class SocketEngine : NSObject, NSURLSessionDelegate, SocketEnginePollable, SocketEngineWebsocket {
     public let emitQueue = dispatch_queue_create("com.socketio.engineEmitQueue", DISPATCH_QUEUE_SERIAL)
     public let handleQueue = dispatch_queue_create("com.socketio.engineHandleQueue", DISPATCH_QUEUE_SERIAL)
     public let parseQueue = dispatch_queue_create("com.socketio.engineParseQueue", DISPATCH_QUEUE_SERIAL)
@@ -102,6 +102,10 @@ public final class SocketEngine : NSObject, SocketEnginePollable, SocketEngineWe
                 forceWebsockets = force
             case let .Path(path):
                 socketPath = path
+                
+                if !socketPath.hasSuffix("/") {
+                    socketPath += "/"
+                }
             case let .VoipEnabled(enable):
                 voipEnabled = enable
             case let .Secure(secure):
@@ -117,6 +121,8 @@ public final class SocketEngine : NSObject, SocketEnginePollable, SocketEngineWe
         
         super.init()
         
+        sessionDelegate = sessionDelegate ?? self
+        
         (urlPolling, urlWebSocket) = createURLs()
     }
     
@@ -205,9 +211,7 @@ public final class SocketEngine : NSObject, SocketEnginePollable, SocketEngineWe
             }
         }
         
-        dispatch_async(emitQueue) {
-            self.doLongPoll(reqPolling)
-        }
+        doLongPoll(reqPolling)
     }
 
     private func createURLs() -> (NSURL, NSURL) {
@@ -456,7 +460,7 @@ public final class SocketEngine : NSObject, SocketEnginePollable, SocketEngineWe
         invalidated = false
         session = NSURLSession(configuration: .defaultSessionConfiguration(),
             delegate: sessionDelegate,
-            delegateQueue: NSOperationQueue())
+            delegateQueue: NSOperationQueue.mainQueue())
         sid = ""
         waitingForPoll = false
         waitingForPost = false
@@ -549,3 +553,11 @@ public final class SocketEngine : NSObject, SocketEnginePollable, SocketEngineWe
         }
     }
 }
+
+extension SocketEngine {
+    public func URLSession(session: NSURLSession, didBecomeInvalidWithError error: NSError?) {
+        DefaultSocketLogger.Logger.error("Engine URLSession became invalid", type: "SocketEngine")
+        
+        didError("Engine URLSession became invalid")
+    }
+}