Add documentation

library/apply.yap

@@ -1,15 +1,43 @@
-/** @defgroup Apply Apply Macros
-@ingroup library
+/**
+ * @file   apply.yap
+ * @author VITOR SANTOS COSTA <vsc@VITORs-MBP.lan>
+ * @date   Mon Nov 16 23:00:08 2015
+ * 
+ * @brief  Stub for maplist and friends
+ * 
+ * 
+*/
+
+
+:- module(apply_stub,[]).
+
+/**
+*  @file apply.yap
+* @defgroup apply_stub Apply Predicates
+
+* @ingroup library
+
 @{
 
 This library provides a SWI-compatible set of utilities for applying a
-predicate to all elements of a list. In practice, the library just forwards
-definitions from the @ref maplist library library.
+predicate to all elements of a list.
+
+The apply library is a _stub_, it just forwards definitions to the
+@ref maplist library. The predicates forwarded are:
+
+  - maplist/2,
+  - maplist/3,
+  - maplist/4,
+  - maplist/5,
+  - include/3,
+  - exclude/3,
+  - partition/4,
+  - partition/5
+
+@}
 
  */
 
-:- module(apply,[]).
-
 :- reexport(library(maplist),
 	    [maplist/2,
 	     maplist/3,
@@ -22,6 +50,3 @@ definitions from the @ref maplist library library.
 	    ]).
 
 
-/**
-@}
-*/