[#4648] Add NOTICE files alongside existing LICENSE

Signed-off-by: Peter Hartmann <peterhartmann@apache.org>
[#4648] Move copyright notice from AsciiDammit.py

Signed-off-by: Peter Hartmann <peterhartmann@apache.org>
[#4648] Remove invalid copyright statement copied from template

Signed-off-by: Peter Hartmann <peterhartmann@apache.org>
[#4648] Adjust text in Allura's NOTICE in line with [#LEGAL-59]

Signed-off-by: Peter Hartmann <peterhartmann@apache.org>
[#4648] Swap jquery.lightbox_me.js for original file without incorrect
copyright statement

Signed-off-by: Peter Hartmann <peterhartmann@apache.org>
[#4648] Add necessary licenses and notices

Signed-off-by: Peter Hartmann <peterhartmann@apache.org>
[#4648] Restore copyright statement in AsciiDammit.py

Signed-off-by: Peter Hartmann <peterhartmann@apache.org>
[#4648] Update copyright statement in docs

Signed-off-by: Peter Hartmann <peterhartmann@apache.org>