1. wxThread changes (detached/joinable) for MSW and docs updates

2. wxUSE_GUI=0 compilation for MSW (use vc6dll.t with tmake) and many small
   fixes related to this
3. an attempt to make wxLog more MT friendly
4. a small fix for wxRegConfig: it doesn't create empty unused keys any
   more (SetPath() would always create a key, now it's deleted if it was
   empty)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4712 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/appcmn.cpp

@@ -47,7 +47,7 @@
 void wxAppBase::ProcessPendingEvents()
 {
     // ensure that we're the only thread to modify the pending events list
-    wxCRIT_SECT_LOCKER(locker, wxPendingEventsLocker);
+    wxCRIT_SECT_LOCKER(locker, *wxPendingEventsLocker);
 
     if ( !wxPendingEvents )
         return;