search: Fix wording for query help text

Signed-off-by: Fam Zheng <famz@redhat.com>
config: Add --config for server subcommand

This will allow writing sophisticated configuration in an ini like file.

Signed-off-by: Fam Zheng <famz@redhat.com>
hook: Add "pre-testing" and "post-testing" server hooks

They are configurable in server config files. This can be used in email
notification.

The hooks should be shell commands. In the command text, pattern {dir}
is replaced with a path to a temperory directory. In the directory there
will be a number of files which serve as keys and their contents serve
as values. They are specific to concrete hook names.

Signed-off-by: Fam Zheng <famz@redhat.com>
hook: Add example config file

Signed-off-by: Fam Zheng <famz@redhat.com>
tester: Add timeout for docker testing

Signed-off-by: Fam Zheng <famz@redhat.com>