Consider wxOSX the port name, and have wxOSX/Carbon and wxOSX/Cocoa as variations, so that linkages from function docs are left intact. Also, do a little cleanup and elaborate more in the docs for OS X Cocoa and OS X Carbon.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59545 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/imaglist.h

@@ -101,7 +101,7 @@ public:
                  matching the dimensions of the image list.
                  This does not apply when adding icons.
 
-        @onlyfor{wxmsw,wxmac}
+        @onlyfor{wxmsw,wxosx}
     */
     int Add(const wxIcon& icon);
 
@@ -209,7 +209,7 @@ public:
         @remarks The original bitmap or icon is not affected by the Replace()
                  operation, and can be deleted afterwards.
 
-        @onlyfor{wxmsw,wxmac}
+        @onlyfor{wxmsw,wxosx}
     */
     bool Replace(int index, const wxIcon& icon);
 };