Fix 1010. Update  to data's new length when data is changed.
Add test to verify fix.
Add support for updating paginator when the data set is added or removed to and from.
Add test for paginator sync against data changes.
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