[yt-dev] Issue #908: data_source.volume() still uses 2.x CellVolume field (yt_analysis/yt)

[John Wise]

New issue 908: data_source.volume() still uses 2.x CellVolume field
https://bitbucket.org/yt_analysis/yt/issue/908/data_sourcevolume-still-uses-2x-cellvolume

John Wise:

The `volume()` call in the `YTSelectionContainer3D` object still uses `CellVolume` to calculate the volume.  This should be changed to `cell_volume`.