Merge branch 'dev-master' into dev-3.x
Work on 3.13.0-pre.
Adding new VERSION entries for HISTORY.md files
Merge dev-master into dev-3.x and resolve merge issues with history
Removed trailing whitespaces
Build YUI
Merge branch 'dev-master' into dev-3.x
Build YUI
Made addTarget and removeTarget chainable.
Updated HISTORY.md.
Improved ButtonCore's handling and preservation of HTML labels
Added tests to ensure nested labels behave correctly
Fixes #1145. e.stopProp() edge case for focus

Multiple delegates for the same node were getting notified when e.stopProp()
was called, even though they were delegating from different containers. This
would be fine (delegate pretends to be individual direct subscriptions) if it
weren't inconsistent with how other events work in that scenario.
Merge branch 'dev-master' of https://github.com/yui/yui3 into pg-908

Conflicts:
	build/paginator/paginator-coverage.js
Merge branch 'dev-master' into dev-3.x
Merge branch 'dev-3.x' of https://github.com/yui/yui3 into dt-915
Merge branch 'dev-master' of https://github.com/yui/yui3 into dt-1010
Add History
Merge branch 'dev-master' into dev-3.x

Conflicts:
	src/datatable/HISTORY.md
Merge branch 'dev-3.x' of https://github.com/yui/yui3 into dt-1052

Conflicts:
	src/datatable/HISTORY.md