handsontable/jquery-handsontable — pull request #1620 by dixso (2014-07-16 12:47:42+00:00)
Title: Highlight multi column and/or multi row (like Google Docs).

Features:
- Select all columns and row.
- Select multi columns.
- Select multi rows.

Example:
http://jsfiddle.net/dixso/53Ynq/1/