Merge pull request #13615 from liewegas/wip-osd-full

mon,osd: new mechanism for managing full and nearfull OSDs for luminous

Reviewed-by: David Zafman <dzafman@redhat.com>

diff --cc src/common/config_opts.h
Simple merge

diff --cc src/mon/Monitor.cc
Simple merge

diff --cc src/mon/OSDMonitor.cc
Simple merge

diff --cc src/mon/PGMonitor.cc
Simple merge

diff --cc src/osd/OSD.cc
Simple merge