Fix symbolic links to directories are not recognized as directories #75
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There is regression (#71) introduced with #33. The proposal is to revert #33 and make a new release of Plexus IO to fix the regression. Latter we can re-introduce the speed improvements, more carefully inspecting if they not change existing behavior. I've also added additional assertion to the existing tests that detects the regression.
Any objection?
cc @gnodet