Removed existence checks for constants that are always available on iOS 6 and later. Fixed issue #169.
Removed existence checks for constants that are always available on iOS 6 and later. Fixed issue #169.

shinjukunian/core-plot,Akylas/core-plot,Akylas/core-plot,core-plot/core-plot,Akylas/core-plot,shinjukunian/core-plot,shinjukunian/core-plot,core-plot/core-plot,shinjukunian/core-plot,shinjukunian/core-plot,core-plot/core-plot,core-plot/core-plot,Akylas/core-plot,Akylas/core-plot