adapting to new libfabric version on March 2nd
adapting to new libfabric version on March 2nd

the new libfabrics require the user to provide REQUIRED domain_attr.mr_mode features, instead of POSSIBLY-SUPPORTED features

Derecho-Project/derecho-unified,Derecho-Project/derecho-unified,Derecho-Project/derecho-unified,Derecho-Project/derecho-unified,Derecho-Project/derecho-unified