[gtk-vnc] README: update outdated notes about GTK/python

[Daniel P. Berrange <dberrange src gnome org>]

commit ff04089b8e148a7784b6864ae1c275786fa97d53
Author: Daniel P. Berrangé <berrange redhat com>
Date:   Wed Aug 1 16:59:46 2018 +0100

    README: update outdated notes about GTK/python
    
    Signed-off-by: Daniel P. Berrangé <berrange redhat com>

 README | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)
---
diff --git a/README b/README
index d045b5b..cabed29 100644
--- a/README
+++ b/README
@@ -9,8 +9,7 @@ asynchronous while remaining single threaded. It provides
 two core C libraries, libgvnc for interacting with the core
 RFB protocol and libgtk-vnc for a GTK display widget.
 
-There is a traditional Python binding built on PyGTK, and
-evolving support for arbitrary languages via the GObject
+Access from non-C languages is available using the GObject
 Introspection system.
 
 For information about the project visit the webpage at:
@@ -29,24 +28,19 @@ To browse or report bugs, go to our bugzilla page at:
 Installation notes
 ------------------
 
- * GTK2/GTK3: The build currently defaults to using GTK2.
-   To enable GTK3 support the flag '--with-gtk=3.0' must
+ * GTK2/GTK3: The build currently defaults to using GTK3.
+   To enable legacy GTK2 support the flag '--with-gtk=2.0' must
    be passed to configure.
 
-         ./configure --with-gtk=3.0
+         ./configure --with-gtk=2.0
 
-   Notes on GTK3 support:
+   Note that when built against GTK3 the library name for gtk-vnc
+   will become 'gtk-vnc-2.0.so' and the pkg-config file will
+   also be 'gtk-vnc-2.0', rather than 'gtk-vnc-1.0.so' and 'gtk-vnc-1.0'
+   for the GTK2 build.
 
-    - The traditional python bindings are disabled when GTK3
-      is used. Applications should use the GObject introspection
-      bindings instead.
-
-    - When built against GTK3, the library name for gtk-vnc
-      will become 'gtk-vnc-2.0.so' and the pkg-config file will
-      also be 'gtk-vnc-2.0'.
-
-    - The gvnc library is unaffected by GTK2/GTK3 build
-      since it only depends on GLib/GIO
+   The gvnc library is unaffected by GTK2/GTK3 build choice since it
+   only depends on GLib/GIO
 
  * NetBSD: You must run configure using