Revert jquery.com commits.

This reverts commit 68d70ed98dda801522c1f92be95261e08da76463.
This reverts commit dfb0b24f0489d4c120e23c72c1216cdc7c50837d.
This reverts commit 662f66c3677bf2b73b1d7aa23678361f52384b64, reversing changes made to 342f518f5c201975b86a8c329d6839cbd612b70b.