     /**
         Increments the number of active network requests.
 
-        If this number was zero before incrementing, the network activity indicator will start spinning after 
+        If this number was zero before incrementing, the network activity indicator will start spinning after
         the `startDelay`.
 
         Generally, this method should not need to be used directly.

    /// A closure executed when the network activity indicator visibility changes.
    public var networkActivityIndicatorVisibilityChanged: (Bool -> Void)?

    /// A time interval indicating the minimum duration of networking activity that should occur before the activity 
    /// indicator is displayed. Defaults to `1.0` second.
    public var startDelay: NSTimeInterval = 1.0


    /**
        Decrements the number of active network requests.

        If the number of active requests is zero after calling this method, the network activity indicator will stop
        spinning after the `completionDelay`.

        Generally, this method should not need to be used directly.
