wxTimer::Start() now calls Stop()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8347 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/timer.tex

@@ -101,6 +101,9 @@ If {\it oneShot} is FALSE (the default), the \helpref{Notify}{wxtimernotify}
 function will be called repeatedly until the timer is stopped. If TRUE,
 it will be called only once and the timer will stop automatically.
 
+If the timer was already running, it will be stopped by this method before
+restarting it.
+
 \membersection{wxTimer::Stop}\label{wxtimerstop}
 
 \func{void}{Stop}{\void}