Added the new scatter plot delegate methods to the change log.
Updated several example apps to use modern syntax for dictionary keys.
Updated the Quartz Composer plugin to use modern syntax for dictionary keys.
Updated the text style category methods to use modern syntax for dictionary keys.
Added new methods to all plots to allow labels, styles, and plot symbols to be updated independent of the plot data. Fixed issue #80.
Added an example of the new data loading methods to the Composite Plot in the Plot Gallery app.