cgi, cron, debwww repos moved to Salsa

Hello all

I have moved the 3 repos that are in

https://anonscm.debian.org/cgit/debwww/

to Salsa using the script mentioned here:

https://wiki.debian.org/Salsa/AliothMigration#Using_a_single_Python_script

Now those repos in Alioth should be read only and don't allow commits.

Changes should be done from now on in:

https://salsa.debian.org/webmaster-team/cgi
https://salsa.debian.org/webmaster-team/cron
https://salsa.debian.org/webmaster-team/debwww (repository empty, but I
moved it anyway)

Please update your personal clones properly.

I will review the code in those repositories to update alioth -> salsa
if needed, and also update the clones in www-master.debian.org to point
to salsa instead of alioth.

Cheers