Merge branch 'devel-0.5' of codebasin.net:xdpd into devel-0.5
Merge branch 'devel-0.4' into devel-0.5
Starting to write code of a plugin to create/destroy a PEX in xDPD
Implementing PEX support in xDPD
The xDPD almost supports PEX ports (creation/distruction). The functions to exchange pkts with PEX are written.
xDPD is not able to start/stop a PEX yet.

Added a simple example of PEX (to be finished).
Changes in the pex-example (to be finished) - It does not compile
ERROR fixed in the function to trasmit a pkt on a pex port.
Improvement in the function to send pkts through a pex port.
The work on the example PEX continues...
Improving PEX example
The support of PEX is xDPD is almost complete (there are some minor issues to be fixed).
It is not tested yet with packets.
FIXED some bugs in the PEX example
Changed the PEX support. Now, if PEX is a DPDK secondary process, it must be created outside xDPD.
Other types are INTERNAL and EXTERNAL, but are not supported.
Added the plugin node-orchestrator, that receives management json commands from the node-orchestrator
Modifying the plugin to receive commands from the node-orchestrator
Merge remote-tracking branch 'origin/devel-0.5' into xdpd-frog

Conflicts:
	src/xdpd/drivers/gnu_linux_dpdk/src/io/tx.h
Merge branch 'devel-0.5' of git://codebasin.net/xdpd into xdpd-frog

Conflicts:
	src/xdpd/drivers/gnu_linux_dpdk/src/pipeline-imp/packet.cc
Merge remote-tracking branch 'origin/devel-0.5' into xdpd-frog
Improvements in the plugin node_orchestrator
Changes in the node_orchestrator plugin