Added support for progress-handler for XhrIo

[RyanBertrand]

Doc
:progress-handler - the handler function for progress events. This handler is only available when using the goog.net.XhrIo API

Example

(ajax/PUT url
          {:handler          (fn [data]
                               (println "Success"))
           :progress-handler (fn [e]
                               (println (str "Progress (" (.-loaded e) "/" (.-total e) ")  [" (* 100 (/ (.-loaded e) (.-total e))) "]%")))
           :format           :raw
           :body             js-file})

Excited to get this in! 👍

Thanks,
R

[JulianBirch]

Thanks! Currently working on #111. A few more weekends and I should be ready for 0.7.0. :)

[JulianBirch]

You'll also see that a lot of code has been moved out of ajax.core (finally...)

[RyanBertrand]

Very exciting! Looking forward to the 0.7 release :)