Bug 9418: Some corrections and additions to about.tt

Bug 9418: Some corrections and additions to about.tt

Test plan:

- Apply patch
- See if KEEP SOLUTIONS and C & P Bibliography Services
- Software Coop should be now software.coop

Bug 9418: Some corrections and additions to about.tt

Replaced & with & according codelines.

Sponsored-by: KEEP SOLUTIONS
Combined to patches into one.
Reorder C-entries as per sort order.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>