first commit
JBChartViewDemo and JBChartView classes
added bar chart unselect index
added line chart unselect index
code review cleanup
removed static color alpha function and replaced with native one
Added explicit required protocols
switched over max and min to fmax fmin
Cleaned up chart information view layout code
code review comments
code review comments
shape layer improvements (code review)
Added default comments to chart protocols
split out selection view into single instance
more code review improvements
Fixed < iOS 7 issues
Safe block copies.
Support for iOS 7 only
Merge pull request #1 from terryworona/master

JBChartViewDemo and JBChartView
Updated read me