-//
-//  ApplicationNetworkActivityIndicator.swift
-//  FranticApparatusDemo
-//
-//  Created by Justin Kolb on 5/14/16.
-//  Copyright © 2016 Justin Kolb. All rights reserved.
-//
+/*
+ The MIT License (MIT)
+ 
+ Copyright (c) 2016 Justin Kolb
+ 
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+ 
+ The above copyright notice and this permission notice shall be included in all
+ copies or substantial portions of the Software.
+ 
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+ */
 
 import UIKit
 
 public final class ApplicationNetworkActvityIndicator : NetworkActivityIndicator {
+    private let lock: NSLock
     private var activityVisibleCount: Int
 
     public init() {
+        self.lock = NSLock()
         self.activityVisibleCount = 0
     }
     

        else if activityVisibleCount > 0 {
            activityVisibleCount -= 1
        }
    }
}

    }

    public func show() {
        lock.lock()
        
        if activityVisibleCount == 0 {
            UIApplication.sharedApplication().networkActivityIndicatorVisible = true
            activityVisibleCount = 1
