DataTables/DataTablesSrc — pull request #9 by greenbender (2014-06-30 14:22:38+00:00)
Title: Added simple support for table-wide data attributes

I haven't added a link showing the feature, however, there is a brief discussion of the issue here http://datatables.net/forums/discussion/17320/setting-options-in-html-attributes-possible

This is a patch I have used myself and is more of a 'proof of concept' than a finished product. There are probably a lot of things I have missed.