Fix failing tests in jQuery 1.4.4 so that it can be supported.

Currently, a few tests dealing with manipulating table rows and columns fail when using jQuery 1.4.4, but these same tests don't fail when using older 1.4.x versions like 1.4.1 and 1.4.2. These tests should be fixed so that the project can support jQuery 1.4.4 which is the newest 1.4.x version.