Merge pull request #6 from shefty/master

Keep in sync with libfabric changes
Use ep/domain attributes in fi_info

Update to use the fi_info::ep_attr and domain_attr fields.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Modify call to open domain to take domain attribute structure

Signed-off-by: Sean Hefty <sean.hefty@intel.com>