Correct comment visibility for parentScroll

The documentation for parentScroll advises that this should not be set by
the developer, so it should probably be protected.
Merge pull request #1224 from andrewnicols/ddscroll-docs

Correct comment visibility for parentScroll
Build DD, no min changes
YUI and Loader build for latest Gallery build
Merge branch 'dev-master' into dev-3.x
Merge branch 'live-docs' into dev-master
Build Gesture and Paginator that have bad coverage files.
Merge branch 'dev-master' into dev-3.x
Build YUI
Merge branch 'dev-3.x' of https://github.com/yui/yui3 into editor
Removed commented out code.