Fixed some memory leaks in the Plot Gallery example app.
Added a scrolling animation to the real time plot demo in the Plot Gallery example app.
Updated CPTAnimation to make sure only one animation for a given target property is running at any given time.
Fixed axis line, tick mark, and grid line alignment on hi-dpi displays.
Built new HTML docs.
Merged the default branch into the release-2.0 branch.
Fixed some KVO and notification bugs in the Mac hosting view.