Replace enum fi_cq_event with uint32_t

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Rename FI_ADDR_UNSPEC to FI_ADDR_NOTAVAIL

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Merge pull request #42 from shefty/master

Update for CQ event and ADDR NOTAVAIL API changes.