Switched ElevationProfileViewController entirely to BackpackerElevationViewController, a subclass of the new Elevation Profile View Controller.
Made some minor changes to the X Axis labeling.
Changed values for plot to doubleForPlot from numberForPlot to speed up processing. Will eventually switch to doublesForPlot:field:recordIndexRange once I figure it out.
And upgraded to doublesForPlot:field:indexRange for an even faster plot load.
Added milesToShow method to public instance methods so subclasses can call it.
Minor updates to bring up ProgressHUD when loading Elevation Profile, and clean up a little code.
Removed supportedInterfaceOrientations (each project can do that on its own) and sorted the Elevation.csv file in ascending order.
Added support for iPad to test app and removed test for Retina Display.
Added viewDidAppear method so make sure mile:distance ratio is kept between view switches.