This contains several fixups for which did not make it into the original
change before it got merged:
* Removal of the GPL licensed shell script. This is replaced by Python
code in neutron-keepalived-state-change. This code was rewritten from
scratch and is Apache licensed.
* Addition of the conntrackd package to bindep.txt for tests. This
properly documents this new test requirement.
* Several typo and other small fixes suggested by Ihar Hrachyshka.
* Common pgrep utility function as suggested by lajoskatona.
Closes-Bug: #2092907
Change-Id: Ica1c38b3a635d60a08f48272fcda2034b0323d10