Updated the Readme to reflect the new Sparks layout and revised info.
Long overdue update. This brings the folder structure into readiness for being a Spark and address the following topics:

* Two additional bar locations (bottom and top, both full-width) provided
* Simpler method for setting the bar location. $bar_location variable at the top of the view file.
* View Data is available under the 'Vars' tab of the profiler bar. Fixes #14
* Works correctly with $_GET data now. Fixes #13
* No longer uses $_ci_view_path so should work with HMVC extension. Fixes # 10