Fixes for Tcl 9.0.

Author: petasis

README.md

@@ -8,11 +8,12 @@ It can be used with any Tk version equal or greater to **8.4** and currently onl
 | OS | Master Branch |
 ---|---
 | Linux, x86, x86-64, Tcl/Tk 8.6 <br> Windows, x86, x86-64, Tcl/Tk 8.6 <br> macOS Sonoma, x86-64, Tcl/Tk 9.0 (Homebrew) | [![Build status](https://ci.appveyor.com/api/projects/status/vfnx40w79dqsox1y/branch/master?svg=true)](https://ci.appveyor.com/project/petasis/tkdnd/branch/master) |
+<!---
 
 [//]: # (| Linux: Ubuntu Xenial 16.04, x86-64, Tcl/Tk 8.6 | [![Build Status](https://app.travis-ci.com/petasis/tkdnd.svg?branch=master)](https://app.travis-ci.com/github/petasis/tkdnd) |)
 [//]: # (| macOS: macOS 10.13, x86-64, Tcl/Tk 8.5 | [![Build Status](https://app.travis-ci.com/petasis/tkdnd.svg?branch=master)](https://app.travis-ci.com/github/petasis/tkdnd) |)
 [//]: # (| macOS: macOS 12.6, x86-64, Tcl/Tk 8.6 (Homebrew) | [![Build Status](https://app.travis-ci.com/petasis/tkdnd.svg?branch=master)](https://app.travis-ci.com/github/petasis/tkdnd) |)
-
+-->
 
 ## Installation
 ### Requirements