Merge remote-tracking branch 'origin/fastpath'

* origin/fastpath:
  Improve the check-pid helper script
Updating CHANGES and VERSION.
Updating version number in doc.
Minor reorganization of broctl README to avoid redundancy

Reorganized a few sections of the document to avoid having the same
information in multiple locations.  Made the use of prefix more consistent
in the examples.  Corrected several typos.
Updating submodule(s).

 [nomail]
Remove unused Broxygen-style script comments.
Merge remote-tracking branch 'origin/topic/jsiwek/misc-fixes'

* origin/topic/jsiwek/misc-fixes:
  Remove unused Broxygen-style script comments.
Add broctl option to set PF_RING cluster type

Added a new broctl option "PFRINGClusterType", which allows a user
to specify a PF_RING cluster type (the default is the same cluster
type used in previous versions of broctl).  The broctl pf_ring plugin
will use this information to set the correct environment variable
which is needed by the PF_RING-aware libpcap to set the cluster type.

Addresses BIT-1108
Merge remote-tracking branch 'origin/master' into topic/dnthayer/doc-updates
Merge remote-tracking branch 'origin/topic/dnthayer/doc-updates'

* origin/topic/dnthayer/doc-updates:
  Minor reorganization of broctl README to avoid redundancy
Change default PF_RING cluster type to 4-tuple
Add tests of the new PFRINGClusterType broctl option
Merge remote-tracking branch 'origin/topic/dnthayer/ticket1108'

* origin/topic/dnthayer/ticket1108:
  Add tests of the new PFRINGClusterType broctl option
  Change default PF_RING cluster type to 4-tuple
  Add broctl option to set PF_RING cluster type

BIT-1108 #merged
Fix bug with IPv6Comm broctl option

This fixes a bug where changing the value of the IPv6Comm broctl option
had no effect.