Woodcutter Hatchet was not cutting trees properly, (hopefully) it will now. If yours isn't working after v9145 ask a DM to rename it to "Woodcutter's Axe" and it should work.
Did some spell improvements for druids.
Flame Lash now does 1d6 damage / 2 Caster Levels bringing its damage into range with other second level spells like Gedlee's Electric Loop, but it remains a single target spell. It also forces a Fortitude Check or blinds the target for 1 round / 2 caster levels.
Healing Sting now does 1d12 + Caster Level Damage and heals you for a similar amount. This is what the canon spell does, shifting damage from 1d6 which was NWN default.
Spike Growth should now be a magical affect, so resting and dispel should remove it.