CogShift/Knockout.Extensions — pull request #28 by odugen (2013-01-10 14:42:51+00:00)
Title: Fix dataSource (Array) update when table filtered

Given table binded to an array with 2 items
And table is filtered with XYZ
And none of the 2 items has matching info
When when dataSource updated with new 3 items
And filter XYZ cleared
Then table should clear old data
And show 3 new items

Actual since code checks visible rows and due to filter there are no
visible row, it will not clear table.
To fix it we should check available data.