Revert "Remove Log4j from licensing info."

Revert non-urgent changes before release.
This reverts commit 311c8388219dd858ef91b080aecce6f964decb3f.
Revert "Removes unnecessary log4j references"

Revert non-urgent changes before release.
This reverts commit c504ff4620c537f6f06ab8366dfa6e2d25d5ad9b.
Revert "Readme cleanup in the distribution packages."

Revert non-urgent changes before release.
This reverts commit c3f61a633026931312437fdb2e8db5109ccacccb.