Weave script changes to enable fast datapath
Weave script changes to enable fast datapath

This means:

* The 'weave' netdev is an OVS datapath

* The weave router container runs with --net=host in order to access
  the datapath.

* The MTU is set to a smaller value, to allow vxlan encapsulation.

Setting the WEAVE_NO_FASTDP environment variable disables these
things, effectively running the router without fast datapath.  It is
an environment variable rather than an option to 'weave launch'
because it takes effect in create_bridge, which is called from many
subcommands, and it doesn't seem practical to add option processing to
all of them.

awh/weave,squaremo/weave,dpw/weave,bboreham/weave,paulbellamy/weave,aaam/weave,rade/weave,n054/weave,n054/weave,tomwilkie/weave,tomwilkie/weave,squaremo/weave,tomwilkie/weave,dpw/weave,paulbellamy/weave,aaam/weave,bboreham/weave,bboreham/weave,paulbellamy/weave,rade/weave,tomwilkie/weave,n054/weave,n054/weave,n054/weave,squaremo/weave,weaveworks/weave,weaveworks/weave,dpw/weave,weaveworks/weave,dpw/weave,paulbellamy/weave,squaremo/weave,weaveworks/weave,bboreham/weave,aaam/weave,rade/weave,awh/weave,bboreham/weave,awh/weave,tomwilkie/weave,awh/weave,dpw/weave,awh/weave,rade/weave,aaam/weave,rade/weave,aaam/weave,squaremo/weave