Updating reference to operadriver jar for IJ. No logical changes.
Breaking a dependency on SimpleJSON for the logging API in Java.

We do this by removing the 'toJson' method and replacing it with a 'toMap' one.
The BeanToJsonConverter has been converted to handle this case.
Simplifying element location/size calculation for image maps as
bot.dom.getClientRect already implements it
Removing an unused method
Merge remote-tracking branch 'upstream/master'