Merge branch '1.0.x' into differentiable-buffer-wip

# Conflicts:
#	Layer/src/main/scala/com/thoughtworks/deeplearning/Layer.scala

Author: Atry

Layer/src/main/scala/com/thoughtworks/deeplearning/Layer.scala

@@ -57,8 +57,8 @@ object Layer {
 
     // TODO: rename to `duplicate`?
     /**
-      * Returns a new [[Batch]] that shares the same [[value]] and [[backward]] behavior with this [[Batch]].
-      * @note The newly created [[Batch]] and this [[Batch]] must be [[close]]d independently.
+      * Returns a new [[Tape]] that shares the same [[value]] and [[backward]] behavior with this [[Tape]].
+      * @note The newly created [[Tape]] and this [[Tape]] must be [[close]]d independently.
       */
     def addReference(): Tape.Aux[Data, Delta]