Don't use vendor name by default in wxStandardPaths.

The changes in r50025 made the behaviour of wxStandardPaths silently
incompatible with the previous versions under MSW and OS X as it now used the
vendor name in the paths it returned, unlike before. The benefits of doing
this don't justify silently breaking the existing programs so revert this
change and continue to use the application name only by default.

It is, of course, still possible to explicitly ask for the vendor name to be
used with wxStandardPaths::UseAppInfo().

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62360 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -80,11 +80,6 @@ Changes in behaviour not resulting in compilation errors, please read this!
 - Default location of wxFileConfig files has changed under Windows, you will
   need to update your code if you access these files directly.
 
-- Return value of wxStandardPaths::GetUserDataDir() and similar functions has
-  changed if the vendor name is defined as it now includes it by default under
-  Windows and OS X. Call wxStandardPaths::UseAppInfo(AppInfo_AppName) to
-  revert to behaviour compatible with 2.8 version.
-
 - wxWindow::IsEnabled() now returns false if a window parent (and not
   necessarily the window itself) is disabled, new function IsThisEnabled()
   with the same behaviour as old IsEnabled() was added.
@@ -385,6 +380,14 @@ Major new features in this release
 2.9.1:
 ------
 
+INCOMPATIBLE CHANGE SINCE 2.9.0
+
+- wxStandardPaths doesn't use vendor name by default under MSW and OSX to
+  remain compatible with 2.8 behaviour but this makes it incompatible with
+  2.9.0. Please use UseAppInfo(AppInfo_AppName | AppInfo_VendorName) explicitly
+  to use the vendor name in the paths returned by wxStandardPaths.
+
+
 All:
 
 - Added wxStd{Input,Output}Stream classes (Jonathan Liu).