Include Numerical header files in developer distribution.
diff --git a/Mac/Distributions/dev.include b/Mac/Distributions/dev.include
index 9db9be3..9c9875f 100644
--- a/Mac/Distributions/dev.include
+++ b/Mac/Distributions/dev.include
@@ -8,7 +8,6 @@
 (':Demo:pysvr', ':Demo:pysvr')
 (':Doc', None)
 (':EditPythonPrefs', None)
-(':Extensions', None)
 (':Grammar:Grammar', None)
 (':Grammar:Icon\015', None)
 (':Grammar:Makefile', None)
@@ -43,6 +42,7 @@
 (':Mac:Build:List.prj.exp', None)
 (':Mac:Build:Nav.prj', None)
 (':Mac:Build:Nav.prj.exp', None)
+(':Mac:Build:PlugIns.old.prj', None)
 (':Mac:Build:PlugIns.prj', None)
 (':Mac:Build:Printing.prj', None)
 (':Mac:Build:Printing.prj.exp', None)
@@ -60,8 +60,10 @@
 (':Mac:Build:PythonStandCarbon.old.prj', None)
 (':Mac:Build:PythonStandCarbon.prj', None)
 (':Mac:Build:PythonStandCarbonGUSI.prj', None)
+(':Mac:Build:PythonStandSmall.old.prj', None)
 (':Mac:Build:PythonStandSmall.prj', None)
 (':Mac:Build:PythonStandSmallShGUSI.prj', None)
+(':Mac:Build:PythonStandalone.old.prj', None)
 (':Mac:Build:PythonStandalone.prj', None)
 (':Mac:Build:Qdoffs.prj', None)
 (':Mac:Build:Qdoffs.prj.exp', None)
@@ -90,6 +92,8 @@
 (':Mac:Build:icglue.prj.exp', None)
 (':Mac:Build:macspeech.prj', None)
 (':Mac:Build:macspeech.prj.exp', None)
+(':Mac:Build:new-PythonStandSmall.prj', None)
+(':Mac:Build:new-PythonStandalone.prj', None)
 (':Mac:Build:pyexpat.prj', None)
 (':Mac:Build:pyexpat.prj.exp', None)
 (':Mac:Build:ucnhash.prj', None)
@@ -352,8 +356,17 @@
 (':pystone.py', None)
 (':readmefiles', None)
 (':site-packages', None)
-(':Mac:Build:PythonStandSmall.old.prj', None)
-(':Mac:Build:PythonStandalone.old.prj', None)
-(':Mac:Build:PlugIns.old.prj', None)
-(':Mac:Build:new-PythonStandSmall.prj', None)
-(':Mac:Build:new-PythonStandalone.prj', None)
+(':Extensions:README.TOO', None)
+(':Extensions:README', None)
+(':Extensions:Makefile.pre.in', None)
+(':Extensions:Imaging', None)
+(':Extensions:img', None)
+(':Extensions:midi', None)
+(':Extensions:Numerical:setup.py', None)
+(':Extensions:Numerical:README', None)
+(':Extensions:Numerical:MANIFEST', None)
+(':Extensions:Numerical:Makefile', None)
+(':Extensions:Numerical:Legal.htm', None)
+(':Extensions:Numerical:DEVELOPERS', None)
+(':Extensions:Numerical:Include', '')
+(':Extensions:Numerical', None)