Merge pull request #165 from vasilenkoigor/UsersLookupByEmail-Endpoint

Added missed users.lookupByEmail endpoint

Author: pvzig

SKWebAPI/Sources/Endpoint.swift

@@ -88,6 +88,7 @@ public enum Endpoint: String {
     case usersGetPresence = "users.getPresence"
     case usersInfo = "users.info"
     case usersList = "users.list"
+    case usersLookupByEmail = "users.lookupByEmail"
     case usersProfileSet = "users.profile.set"
     case usersSetActive = "users.setActive"
     case usersSetPresence = "users.setPresence"

SKWebAPI/Sources/WebAPI.swift

@@ -1138,6 +1138,15 @@ extension WebAPI {
             failure?(error)
         }
     }
+    
+    public func usersLookupByEmail(_ email: String, success: ((_ user: User) -> Void)?, failure: FailureClosure?) {
+        let parameters: [String: Any] = ["token": token, "email": email]
+        networkInterface.request(.usersLookupByEmail, parameters: parameters, successClosure: { response in
+            success?(User(user: response["user"] as? [String: Any]))
+        }) { error in
+            failure?(error)
+        }
+    }
 
     public func usersProfileSet(profile: User.Profile, success: SuccessClosure?, failure: FailureClosure?) {
         let profileValues = ([