Added an optional callback that provides raw json data to be supplied to the client application.
Added an optional callback that provides raw json data to be supplied to the client application.

SwatantraYadav/Twitterizer,CruelCow/Twitterizer,SwatantraYadav/Twitterizer,meebey/Twitterizer,GProulx/Twitterizer,yonglehou/Twitterizer,GProulx/Twitterizer,yonglehou/Twitterizer,CruelCow/Twitterizer,meebey/Twitterizer