We were mentioning "Suricata Support" page, which could be a bit
misleading -- and also used a link that is actually redirected to the
Suricata Community page, anyways.
Many places were still referencing the old Suricata page.
Used git grep with replace to update them. Checked that new links work.
Left old references when they were only documentation examples (for
output or unittests).
Task#4915
Add the missing manpages and the corresponding Sphinx configuration
for the command line tools `suricatasc` and `suricatactl`.
Closes redmine ticket #884.
The command line options can now be consumed by the man page
and the user guide.
Some attempt was made to order the options from common/basic
progressing to advanced with some notion of options
grouped together.