Add support for IPv6 address

IPv4 and IPv6 addresses are now accepted as server names

Qperf release 0.4.10

Changes from qperf v0.4.9:

Manish Regmi:
Bump the version to 0.4.10 for the new release.

Dean Luick:
qperf: Add IBV_QP_CAP to ibv_query_qp call.

Ram Amrani:
Destroy server's QP in CM mode.