v11.4 tag before introducing the new extensible control API

Merge branch 'master' into gh

linux/README: details on configure usage

patches to vtnet and em drivers

v1000/socket support available

Merge branch 'next' into master

remove trailing whitespace

This tag points to the commit which preceeds the merge with the

newapi3 branch. It's useful for binaries compiled with the
old netmap API.

newapi apparently working