iOS / PNChart

Updated circle chart API

Detects touches on the bars and, if implemented, calls to the delegate

FIX related with XLabels 

Now you can use showLabels, setXLabels, etc in different order.

Add ability for PNCircleChart to go clockwise 

Less Precise Line Chart

…r a line will trigger the userClickedOnLinePoint and userClickedOnLineKeyPoint delegate methods.

empty lines and indentation

Removing existent subviews before adding new ones in PNBarChart