0_8_7 Sync to core team's development branch

* Add support for DPDK 1.5.2, NOTE: This removes compatibility for DPDK
1.4
* Add support for ovs_testsuite and add project specific unit tests
* Bug fixes
* Apply patches below
__________________________________________________________________
[PATCH] Free up all registered devices if pci_get_device fails.
Signed-off-by: Paul Barrette <paul.barrette@windriver.com>
__________________________________________________________________
[PATCH] dpif-dpdk: introduce dpif_dpdk_flow_actions_to_actions()
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Reviewed-by: Hayato Momma <h-momma@ce.jp.nec.com>
__________________________________________________________________
[PATCH] datapath/dpdk/stats: make stats per lcore
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
__________________________________________________________________
[PATCH] datapath/dpdk/kni: serialize fifo access in send_to_kni()
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Merge branch 'development' of https://github.com/01org/dpdk-ovs into development
Update NEWS.md
0_8_11 Sync to core team's development branch

* Add ovs-testsuite files which were left out of last commit
Merge branch 'development' of https://github.com/01org/dpdk-ovs into development
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Merge branch 'development' of https://github.com/01org/dpdk-ovs into development
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