Deprecate wxPathExists, make wxDirExists used everywhere, minor source cleaning.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33350 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -2,6 +2,13 @@
 wxWidgets 2.5 Change Log - For more verbose changes, see the manual
 -------------------------------------------------------------------
 
+2.6
+-----
+
+All:
+
+- wxPathExists deprecated, use wxDirExists instead.
+
 2.5.5
 -----
 
@@ -121,8 +128,8 @@ All:
 - wxGetPowerType() and wxGetBatteryState() addition
 - wxSystemSettings::GetSystem*() members deprecated and replaced with
   wxSystemSettings::Get*()
-- wxWindowBase::DoGetBestSize now includes the difference (if any) between 
-  the client size and total size of the window.  Code that sets the 
+- wxWindowBase::DoGetBestSize now includes the difference (if any) between
+  the client size and total size of the window.  Code that sets the
   client size using the best size, or that added extra space to sizers
   to compensate for this bug may need to be changed.
 - Changed calculation of scrolling area to not clip away some bits