Cleaned up documentation, added lacking Java annotations.

src/com/sk89q/worldedit/blocks/BaseBlock.java

@@ -49,6 +49,7 @@ public class BaseBlock {
      * Construct the block with its type and data.
      *
      * @param type
+     * @param data 
      */
     public BaseBlock(int type, int data) {
         this.type = (short)type;