grpcomm collectives: fix race condition inside one collective and between collectives (by adding sequence number into the signature)
Merge branch 'master' of https://github.com/rhc54/ompi-svn-mirror
removed pmix_base_direct modex mca parameter, renamed orte_full_modex_cutoff and ompi_hostname_cutoff to direct_modex_cutoff
MXM MTL: use async modex
fixed ugly bug which caused many strange hangs
Merge remote-tracking branch 'origin/master' into pmix_sm_devel