fix for BUG-709 - mixed up flow cookie and connection cookie

- flow cookie [64b] is present at receivedPacket (to distinguish responsible flow)
- connection cookie [32b] is present at receivedPacket and is expected
  to be copied into corresponding transmitPacketInput (to distinguish auxiliary connection)
- fixed sal-compatibility, l2switch/implementation, sal-binding-it

Change-Id: I331aa3a0f582219a1c604e21466c7a893ee4ed67
Signed-off-by: Michal Rehak <mirehak@cisco.com>
BUG-758 Eliminate xtend from sal-netconf-connector

Change-Id: I6add3e5ef2790aab5f0cda886f40bc400ff81f8d
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>
BUG-732 Fix netconf client deadlock when downloading yang schemas from remote device

Signed-off-by: Maros Marsalek <mmarsale@cisco.com>
Change-Id: Ic70085655e38ebc1e159fd4ba4b93172e468f4ad
Merge "fix for BUG-709 - mixed up flow cookie and connection cookie"
Merge "BUG-758 Eliminate xtend from sal-netconf-connector"
Merge "BUG-732 Fix netconf client deadlock when downloading yang schemas from remote device"