Bump up version for next release (2.3.1)
Change to new default building size
Fix ClosestOutComparator
Revert "Bump up version for next release"

This reverts commit 9968fe58cc38e79dbd02583d3c846672ad424c2b.
Revert "Merge tag '2.4' into release"

This reverts commit b0828eeb5305e0a9ab0466d6615a97b071a973fa, reversing
changes made to e305f28cda4f8b365f0bcabbeca3fb77e017488a.
Merge branch 'hotfix' into 2
Bump up version to 2.5 for next release