Change api signature from update(xxx) to updateXXX. Change doc accordingly.

Author: tapashmajumder

README.md

@@ -148,7 +148,7 @@ Congratulations! You can now send remote push notifications to your device from
 
 	* Handling Links from Push Notifications
 		
-		Push notifications and action buttons may have `openUrl` actions attached to them. When a URL is specified, the SDK first calls `urlDelegate` specified in your `IterableConfig` object. You can use this delegate to handle `openUrl` actions the same way as you handle normal deep links. If the delegate is not set or if it returns `false` (the default), the SDK will open Safari with that URL. If you want to navigate to a UIViewController on receiving a deep link, you should do so in the `urlDelegate`. 
+		Push notifications and action buttons may have `openUrl` actions attached to them. When a URL is specified, the SDK first calls `urlDelegate` specified in your `IterableConfig` object. You can use this delegate to handle `openUrl` actions the same way as you handle normal deep links. If the delegate is not set or if it returns `false` (the default), the SDK will open Safari with that URL. If you want to navigate to a UIViewController on receiving a deep link, you should do so in the `urlDelegate`. 
 		
 		In the code below, `DeepLinkHandler` is a custom handler which is reponsible for deep link navigation. You have to provide implementation for deep link navigation. Please see [sample application](./sample-apps/swift-sample-app/swift-sample-app.xcworkspace) for a reference implementation.
 		
@@ -160,7 +160,7 @@ Congratulations! You can now send remote push notifications to your device from
 			// Initialize Iterable API
 			let config = IterableConfig()
 			...
-			config.urlDelegate = self
+			config.urlDelegate = self
 			IterableAPI.initialize(apiKey: apiKey, launchOptions:launchOptions, config: config)
 			...
 		}
@@ -262,7 +262,7 @@ Congratulations! You can now send remote push notifications to your device from
 	Custom events can be tracked using `IterableAPI.track(event:...)` calls.
 
 5. ##### Updating User Fields
-	User fields can be modified using `IterableAPI.updateXYZ(...)` calls.
+	User fields can be modified using `IterableAPI.updateUser` call. You also have `updateEmail` and `updateSubscriptions` methods.
 
 6. ##### Disabling Push Notifications to a Device
 	When a user logs out, you typically want to disable push notifications to that user/device. This can be accomplished by calling `disableDeviceForCurrentUser`. Please note that it will only attempt to disable the device if you have previously called `registerToken`.

swift-sdk/IterableAPI.swift

@@ -165,7 +165,7 @@ public final class IterableAPI : NSObject {
      - seeAlso: OnSuccessHandler
      - seeAlso: OnFailureHandler
      */
-    @objc(updateUser:mergeNestedObjects:onSuccess:onFailure:) public static func update(userDataFields dataFields: [AnyHashable : Any], mergeNestedObjects: Bool, onSuccess: OnSuccessHandler? = nil, onFailure: OnFailureHandler? = nil) {
+    @objc(updateUser:mergeNestedObjects:onSuccess:onFailure:) public static func updateUser(_ dataFields: [AnyHashable : Any], mergeNestedObjects: Bool, onSuccess: OnSuccessHandler? = nil, onFailure: OnFailureHandler? = nil) {
         implementation?.updateUser(dataFields, mergeNestedObjects: mergeNestedObjects, onSuccess: onSuccess, onFailure: onFailure)
     }
 
@@ -182,7 +182,7 @@ public final class IterableAPI : NSObject {
      - seeAlso: OnSuccessHandler
      - seeAlso: OnFailureHandler
      */
-    @objc(updateEmail:onSuccess:onFailure:) public static func update(email newEmail: String, onSuccess: OnSuccessHandler?, onFailure: OnFailureHandler?) {
+    @objc(updateEmail:onSuccess:onFailure:) public static func updateEmail(_ newEmail: String, onSuccess: OnSuccessHandler?, onFailure: OnFailureHandler?) {
         implementation?.updateEmail(newEmail, onSuccess: onSuccess, onFailure: onFailure)
     }
 
@@ -351,7 +351,7 @@ public final class IterableAPI : NSObject {
 
      - remark: passing in an empty array will clear subscription list, passing in nil will not modify the list
      */
-    @objc(updateSubscriptions:unsubscribedChannelIds:unsubscribedMessageTypeIds:) public static func update(subscriptions emailListIds: [String]?, unsubscribedChannelIds: [String]?, unsubscribedMessageTypeIds: [String]?) {
+    @objc(updateSubscriptions:unsubscribedChannelIds:unsubscribedMessageTypeIds:) public static func updateSubscriptions(_ emailListIds: [String]?, unsubscribedChannelIds: [String]?, unsubscribedMessageTypeIds: [String]?) {
         implementation?.updateSubscriptions(emailListIds, unsubscribedChannelIds: unsubscribedChannelIds, unsubscribedMessageTypeIds: unsubscribedMessageTypeIds)
     }