Update to reflect consolidation of transfer interfaces

Update send/recv calls after the merging of sendto/recvfrom with
standard send/recv calls.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Merge pull request #74 from shefty/master

Update to reflect consolidation of transfer interfaces
Bugfixes and misc changes

1. Correct latency calculation in RMA examples.
2. Prevent race condition in rdm examples.
3. Print CQ error info when fi_cq_read returns -EAVAIL.

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