made the editable struct's members mutable, finally starting to think…

… swift-wise

XcodeServerSDK.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "XcodeServerSDK"
-  s.version      = "0.3.3"
+  s.version      = "0.3.4"
   s.summary      = "Access Xcode Server API with native Swift objects."
 
   s.homepage     = "https://github.com/czechboy0/XcodeServerSDK"

XcodeServerSDK/XcodeServerConfig.swift

@@ -28,24 +28,33 @@ private struct Keys {
 
 public struct XcodeServerConfig : JSONSerializable {
 
-    public let host: String
-    public let user: String?
-    public let password: String?
-    public let port: Int = 20343
     public let id: RefType
+    public var host: String
+    public var user: String?
+    public var password: String?
+
+    public let port: Int = 20343
 
     //if set to false, fails if server certificate is not trusted yet
     public let automaticallyTrustSelfSignedCertificates: Bool = true
 
     public func jsonify() -> NSDictionary {
         let dict = NSMutableDictionary()
-        dict[Keys.Host] = self.host
         dict[Keys.Id] = self.id
+        dict[Keys.Host] = self.host
         dict.optionallyAddValueForKey(self.user, key: Keys.User)
         dict.optionallyAddValueForKey(self.password, key: Keys.Password)
         return dict
     }
 
+    //creates a new default config
+    public init() {
+        self.id = Ref.new()
+        self.host = ""
+        self.user = nil
+        self.password = nil
+    }
+
     /**
     Initializes a server configuration with the provided host.
     - parameter host: `Xcode` server host.