Clean up module vs class descriptions, +@since 3.5.0 Moved the lengthy text from the module description to the class description so the module page would look cleaner. Added note for each class extension to point readers to the DataTable class for docs on the APIs contributed by this class, since they all have @for DataTable.

NPE for addRow(undefined)

Refine falsy check, fix moveColumn for nested cols

Refine falsy check to allow removeColumn(0)

Move column.parent -> column._parent

Review feedback autoSync should have explicit boolean type and validation addRow should only call save() for new Models modifyRow should only call save for known Models

Remove * in param suggesting mutiple args ok

Add ability to trigger Model's sync operations

Fix examples for syntax highlighting

Use late bound defaultFns for events

Verify that Y.DataTable is a function Per the requires, datatable-base should run before mutable, but it's failing in my loaderless dev env, so I may as well be safe about it.

+API docs, -reset() method `table.reset(blah)` was removed in favor of `table.set('data', blah);`

Add datatable-mutable for addRow, addColumn, etc