CM-172: enough with the potentially painful imgapi 007 migration
TOOLS-718 Want `sdc-server ips <uuid>`
[doc][trivial] incr-upgrade-scripts readme ref public builds.
AGENT-824: SAPI-fy cn-agent
HEAD-1946: Make no-rabbit a build.spec flag
HEAD-2185 incr-upgrades exclude DAPI from upgrade list on old headnodes.
TOOLS-725: incr-upgrade: download-all/download-image can fail with old imgapi + new updates-imgadm
#3: can't build without a key on Manta Joyent_Dev user
#3: fix 'make check'