Updated credits.

NOTICE.txt

@@ -1,6 +1,8 @@
-This product includes software from JNBT (http://jnbt.sourceforge.net/).
-
-This product includes software from WorldEdit
-(http://www.sk89q.com), under GNU Lesser General Public License, version 3.
-
-This product includes software from JOpt Simple, under the MIT license.
+This product includes software from JNBT (http://jnbt.sourceforge.net/).
+
+This product includes software from WorldEdit
+(http://www.sk89q.com), under GNU Lesser General Public License, version 3.
+
+This product includes software from JOpt Simple, under the MIT license.
+
+This product includes software by toi.

README.txt

@@ -12,3 +12,9 @@ files, and much more.
 
 For installation and usage help, see:
 http://wiki.sk89q.com/wiki/WorldEdit
+
+Thanks
+------
+
+- grum for providing the area smooth code.
+- toi for the TargetBlock class.