Merge pull request #4 from Techcable/patch-1

Fix mutable block position construction

Spigot-Server-Patches/Speedup-BlockPos-by-fixing-inlining.patch

@@ -127,7 +127,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +            // PaperSpigot start - modify base x,y,z
 +            this.setX(i);
 +            this.setY(j);
-+            this.setY(k);
++            this.setZ(k);
          }
  
 +        /*