Support for secondaryProgress

[mzgreen]

Could you add support for secondaryProgress like Android's ProgressBar class does?
Sample use would be start streaming music and showind song progress and also buffering progress (using setSecondaryProgress). Sample for Android's ProgressBar might look like this:
http://www.hrupin.com/2011/02/example-of-streaming-mp3-mediafile-with-android-mediaplayer-class

[dmytrodanylyk]

@MeGreen nice idea, but I am going to my annual leave, so expect this feature in September.

[mzgreen]

Ok :) Eventually I will try contribute by adding this if I will have some time.

[amanjain08]

Could you please help me to reset the button to the initialise state (ActionProcessButton). Suppose I use this ActionProcessButton for login and found that the login credential are wrong then I change the FlatButton to ActionProcessButton.