Avoid race condition when setting default gateway.
If ip link set is failed, then try brctl addbr.
Merge pull request #31 from johngmyers/default-route-race

Avoid race condition when setting default gateway.
Merge pull request #32 from hansode/for-centos6

If ip link set is failed, then try brctl addbr.
Set BRTYPE to "linux" by default.

If the bridge doesn't exist, `BRTYPE` wasn't set, and the code to
add the interface to the bridge was never called.

Set it to `linux` by default.
Shorten interface names to avoid too long names

This "fixes" #28
Merge pull request #34 from discordianfish/fix-too-long-if-names

Shorten interface names to avoid too long names
Give our ARP neighbors a nudge about the new interface

The new interface cannot be reached until the local switch learns about
its MAC address, which could take minutes. Sending a gratuitous ARP
moves things along so that the interface becomes reachable right away.
Merge pull request #33 from dineshs-altiscale/master

Give our ARP neighbors a nudge about the new interface
Fix typo in warning message
Merge pull request #38 from ruphin/master

Fix typo in warning message
Update deprecated docker flags to new format
Merge pull request #43 from ruphin/update_docker_flags

Update deprecated docker flags to new format
Document headless VirtualBox and Vagrant config to disable MAC filtering
Improve documentation for macvlan interfaces.
Merge pull request #46 from dineshs-altiscale/vagrant

Document headless VirtualBox and Vagrant config to disable MAC filtering
Update to work with libcontainer

Makes pipework work with the new docker native exec driver (libcontainer).
Use pid from docker inpsect

Since docker returns a pid for the container use that instead of doing all the other hackery.
Merge pull request #41 from cpuguy83/patch-2

Update to work with libcontainer
Adding functionality to find any available dhcp client(dhclient,udhcpc,
or dhcpcd) for use in cases where udhcpc may not be readily available.
Also a few checks to not run mkdir or rm unless necessary.