Create a findlib sub-package for metaquot, so that users can use the ppx_tools library without the ppx metaquot.

Author: alainfrisch

META

@@ -3,4 +3,10 @@ description = "Tools for authors of ppx rewriters and other syntactic tools"
 archive(byte) = "ppx_tools.cma"
 archive(native) = "ppx_tools.cmxa"
 requires = "compiler-libs.common"
-ppx = "./ppx_metaquot"
+
+package "metaquot" (
+  version = "0.1"
+  description = "Meta-quotation: Parsetree manipulation using concrete syntax"
+  requires = "ppx_tools"
+  ppx = "./ppx_metaquot"
+)

README.md

@@ -7,7 +7,7 @@ This package is licensed by LexiFi under the terms of the MIT license.
 
 The tools are installed as a findlib package called 'ppx_tools'.
 Executables are thus accessible through the ocamlfind driver (e.g.:
-ocamlfind ppx_tools/dumpast.exe).
+ocamlfind ppx_tools/dumpast).
 
 
 Ast_mapper_class
@@ -56,7 +56,7 @@ supported extensions.
 
 Usage:
 
-    ocamlfind -c -ppx "ocamlfind ppx_tools/ppx_metaquot" my_ppx_code.ml
+    ocamlfind -c -package ppx_tools.metaquot my_ppx_code.ml
 
 
 genlifter
@@ -104,5 +104,5 @@ produces the following class:
       end
 
 _dumpast_ is a direct example of using _genlifter_ applied on the
-OCaml Parsetree definition itself.  ppx_metaquot.exe is another
+OCaml Parsetree definition itself.  ppx_metaquot is another
 similar example.