[cperf] Update README to reflect recent changes.
[neutron2snabb] Fix designs/neutron/selftest.sh .
app.lua: Fix performance issue on with_restart()

with_restart has much better JIT behavior now that it takes a method
name instead of a closure to specify the code to run.
Merge pull request #254 from eugeneia/neutron2snabb_disable_secgroups

[neutron2snabb] Fix designs/neutron/selftest.sh .
Merge pull request #255 from lukego/app_with_restart_opt

app.lua: Fix performance issue on with_restart()
Merge pull request #246 from eugeneia/cperf-docs

[cperf] Update README to reflect recent changes.