#265 is a breaking change. According to semver, this should be released with a major version bump, not a patch-level update.

The latest release of topojson causes breaking changes if installing via bower (the /build folder is never created). Anyone who has installed this package with bower now faces failing builds and/or must update their own dependencies to an older version of topojson.

Can you release another patch-level version with those changes reverted? Then the changes from #265 can be released with a major version.