First spin for a universal way to run ettercap as root by pkexec
Merge branch 'master' into pkexec

Conflicts:
	src/CMakeLists.txt
pkexec fix
Merge remote-tracking branch 'upstream/master' into pkexec
Little refactor
Man change
Merge pull request #273 from koeppea/master

Fix for issue #271
Merge pull request #231 from LocutusOfBorg/pkexec

First spin for an universal way to run ettercap as root by pkexec
Fixing issue 245
Adding something
Merge pull request #275 from LocutusOfBorg/fix-socket2

Fix socket2
Disable offload error print
retry for max 5 times if you cannot restore ip_forward
Merge pull request #277 from LocutusOfBorg/fix-ip_forward

retry for max 5 times if you cannot restore ip_forward
Fix man
Merge pull request #282 from LocutusOfBorg/fix-man

Fix man
Fix detection of system libnet.

The latest version of libnet from https://github.com/sam-github/libnet
has `#define LIBNET_VERSION  "1.2-rc2"`. This causes the current version
to not detect the presence of the system libnet because the regex used
to extract the version number only includes numbers and periods.

This fixes the detection of 1.2-rc* versions. No problems exist when
linking to the newer libnet library to the best of my knowledge.
fixed some mem leakage
Merge pull request #283 from h3xx/master

Fix detection of system libnet.
only include IPv6 stuff when compile flag has been set