Bump stringstream from 0.0.5 to 0.0.6 (#1786)
Bump stringstream from 0.0.5 to 0.0.6 (#1786)

Bump stringstream from 0.0.5 to 0.0.6
artsy/metaphysics,mzikherman/metaphysics-1,mzikherman/metaphysics-1,artsy/metaphysics,artsy/metaphysics,mzikherman/metaphysics-1,mzikherman/metaphysics-1