Removed some unused images from the HTML docs.
Removed unused image files from several example apps.
Added @2x app icons to the iOS Plot Gallery and CPTTestApp example apps.
Updated the change log to separate release 2.0-only changes from changes on the default branch.
Added an option to turn off automatic plot data label anchor point adjustments. Fixed issue 473.
Built new HTML docs.
Merged the default branch into the release-2.0 branch.