Rename fi_pendpoint to fi_passive_ep

Match update to libfabric.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Merge pull request #78 from shefty/master

Rename fi_pendpoint to fi_passive_ep
Merge pull request #79 from a-ilango/dev

simple: fi_inject and fi_senddata examples.
Sync with libfabric changes and check remote cq data flag in completion entry before reading it.

Signed-off-by: Arun C Ilango <arun.ilango@intel.com>