Add SerializedName to PhxMessage (#18)

* Expose OkHttpClient and clear connection on failure

* Added SerializedName to PhxMessage. Updated ReadME

Author: dsrees

README.md

@@ -15,7 +15,7 @@ fun connectToChatRoom() {
 
     // Create the Socket
     val params = hashMapOf("token" to "abc123")
-    val socket = PhxSocket("http://localhost:4000/socket/websocket", multipleParams
+    val socket = PhxSocket("http://localhost:4000/socket/websocket", multipleParams)
 
     // Listen to events on the Socket
     socket.logger = { Log.d("TAG", it) }
@@ -38,6 +38,19 @@ fun connectToChatRoom() {
 }
 ```
 
+You can also inject your own OkHttp Client into the Socket to provide your own configuration
+```kotlin
+// Create the Socket with a pre-configured OkHttp Client
+val client = OkHttpClient.Builder()
+    .connectTimeout(1000, TimeUnit.MILLISECONDS)
+    .build()
+    
+val params = hashMapOf("token" to "abc123")
+val socket = PhxSocket("http://localhost:4000/socket/websocket", 
+                       multipleParams,
+                       client)
+```
+
 
 ### Installation
 

src/main/kotlin/org/phoenixframework/PhxMessage.kt

@@ -1,15 +1,26 @@
 package org.phoenixframework
 
+import com.google.gson.annotations.SerializedName
+
 class PhxMessage(
         /** The unique string ref. Empty if not present */
+        @SerializedName("ref")
         val ref: String = "",
+
         /** Property "topic" is never used */
+        @SerializedName("topic")
         val topic: String = "",
+
         /** Property "topic" is never used */
+        @SerializedName("event")
         val event: String = "",
+
         /** Property "topic" is never used */
+        @SerializedName("payload")
         val payload: Payload = HashMap(),
+
         /** The ref sent during a join event. Empty if not present. */
+        @SerializedName("join_ref")
         val joinRef: String? = null) {