procview: Allow configuring a single thread

When selecting a single thread we will no find it in the list of all
processes, so we need to figure out the parent thread and then find
the individual thread info in its threads member.

BZ: https://bugzilla.redhat.com/show_bug.cgi?id=601234
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 files changed