Initial commit
Added storyboard & AL, updated project file, slight restructure.

I've added a storyboard & AL for easy rotation, updated the project for
Xcode 5, and removed the chart reference from its datasource, instead
appending data from the view controller directly. Removed CanvasOverlay
category, replacing it with a method on the VC, and removed unused
TrackOverlay class.
Merge pull request #1 from sawithington/master

Added storyboard & AL, updated project file, slight restructure.
Made chart background clear
Revert "Made chart background clear"

This reverts commit 81a50fbc785229dbe29782037124d594bf374e9e.
Reordered methods so blog post will make more sense, and fixed some typos.
Updated screenshot
Update README.md
Fixed autoresizing
Merge pull request #1 from alisonrclarke/master

Added project