light: show connection info
copy: add timestamp of last advance
light: show new {fetch,sync} info
marsadm: path correction / systematic naming conventions
light: allow limiting the sync parallelism
marsadm: implement new 'view' command
xxx view Paused{Sync,Replay} Regressionsgefahr!
marsadm: prevent only _new_ split brains
xxx dynamic programming on split brain detection
zzz debug
doc: update