Update BowBase.java
Fixes the hammer mining level of adjacent blocks
Merge pull request #478 from Glassmaker/16x

Fixes the hammer mining level of adjacent blocks
Merge pull request #474 from laz2727/16x

Update BowBase.java
Merge branch '16x' of https://github.com/SlimeKnights/TinkersConstruct into 1.6.4
Merge branch '16x' of https://github.com/SlimeKnights/TinkersConstruct into 1.6.4