Added property setters in CPTPlotSymbol to force a redraw after changing the appearance properties (line style, fill, clip rule).
Simplified handling of rounded rectangle paths.
Fixed some pixel alignment issues in legends.
Fixed a pixel alignment issue. Fixed issue 541.
Fixed a crashing issue when using attributed strings under iOS 5 and earlier.
Merged the default branch into the release-2.0 branch.
Updated the unit tests to match the updated pixel alignment code.
Changed several properties from "retain" to "strong".
Added an image fill to the iPhone CPTTestApp.
Updated CPTImage to automatically handle switching between Retina and non-Retina displays. Fixed issue 492.
Force plot symbols to redraw when switching between Retina and non-Retina displays.
Merged the default branch into the release-2.0 branch.