Remove references to GTK+ 3 support being experimental

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75071 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/doxygen/mainpages/introduction.h

@@ -128,9 +128,8 @@ To make use of wxWidgets, you currently need one of the following setups.
     compilers such as Sun CC, HP-UX aCC or SGI mipsPro.
 @li Almost any Unix workstation, and one of: GTK+ 2.6 or higher (GTK+ 1.2.10
     may still be supported but wxGTK1 port is not maintained any longer and lacks
-    many features of wxGTK2; GTK+ 3 is supported but is still experimental),
-    Motif 1.2 or higher or Lesstif. If using the wxX11 port, no such widget set
-    is required.
+    many features of wxGTK2, Motif 1.2 or higher or Lesstif. If using the wxX11
+    port, no such widget set is required.
 
 (c) Mac OS/Mac OS X:
 

docs/doxygen/mainpages/platdetails.h

@@ -50,8 +50,7 @@ GTK+ 1.2 can still be used, albeit discouraged. For that you can pass
 @c --with-gtk=1 to the @c configure script.
 
 Support for GTK+ 3 is available starting with wxWidgets 2.9.4, use @c configure
-option @c --with-gtk=3 to enable it. It is still under development and may have
-significant bugs or missing features, and should be considered experimental.
+option @c --with-gtk=3 to enable it.
 
 For further information, please see the files in @c docs/gtk in the
 distribution.

docs/gtk/readme.txt

@@ -12,14 +12,12 @@ will fall back to a generic implementation if these features
 are not present in the GTK+ version used.
 
 wxWidgets 2.9.4 adds support for GTK+ 3, which can be enabled
-with configure option --with-gtk=3. Note that this port is
-still in development and may have significant bugs or missing
-features, and should be considered experimental.
+with configure option --with-gtk=3.
 
-wxWidgets 2.8 still supports GTK+ 1.2, but no developement
+wxWidgets 2.8 still supports GTK+ 1.2, but no development
 is done on that port anymore and support for GTK+ 1.2 will
 probably be dropped entirely. Indeed, one of the major steps
-in the developement cycle leading up to wxWidgets 2.8 was
+in the development cycle leading up to wxWidgets 2.8 was
 that the codebase for GTK+ 1.2 and GTK+ 2.0 were separated
 so that improvements and clean-ups to the GTK+ 2.0 port 
 could be done without caring for GTK+ 1.2.

docs/readme.txt

@@ -72,7 +72,6 @@ There is some support for the following platforms:
 - Most Unix variants with X11
 - Most Unix variants with Motif/Lesstif
 - Most Unix variants with GTK+ 1.2
-- Most Unix variants with GTK+ 3 (still in development)
 - OS/2
 - Windows CE (Pocket PC)