Carlos David Rios Vertel

strong references from a view to its subviews causes a retain cycle @see https://developer.apple.com/library/ios/documentation/Cocoa/Conceptual/MemoryMgmt/Articles/mmPractical.html @see http://www.cocoawithlove.com/2009/07/rules-to-avoid-retain-cycles.html

Hey, thanks for this interesting library, I found it a lot useful for a project where I am working right now. Btw I just added an index to `calendar:prepareMenuItemView:date:(NSDate *)date`...

Sometimes you need define the axis domain, like percentages values for example that we need to set the limit from 0 to 100%.

the line documentation for `yAxisTickFormat` property was removed because it was duplicated