evolve: revision graph

graph

less more | rev 5066: (0) -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 tip

obshistory: factor out _markerseffects()
Sat, 11 Jan 2020 19:49:45 +0700, by Anton Shestakov
obshistory: factor out _markerspreciseverb()
Sat, 11 Jan 2020 19:24:21 +0700, by Anton Shestakov
evolve: provide branch argument to overlayworkingctx.tomemctx()
Fri, 17 Jan 2020 20:40:24 +0700, by Anton Shestakov

less more | rev 5066: (0) -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 tip