* remove randomness as far as possible
* make listener to close connections
* report time in a csv-friendly format
* remove tools from README
* rename time-scope-probe -> time-scope-probe-proc
* add time-scope-probe-cgroup
`extras/dialer` contains both a dialer script and dialer.go, the go
sources for the dialer server and client, to allow users to build the
dialer container themselves. Move dialer.go to a sub directory `src`
since `make clean` (running `go clean ./...`) deletes the dialer script
otherwise.
Fixup for 4d20a91a97
Signed-off-by: Michael Schubert <michael@kinvolk.io>