Use wx-prefixed macros throughout the repository.

Change {DECLARE,IMPLEMENT}_*CLASS and {DECLARE,BEGIN,END}_EVENT_TABLE
occurrences to use the wx-prefixed version of the macros.

utils/helpview/src/remhelp.h

@@ -40,7 +40,7 @@ public:
 
 class wxRemoteHtmlHelpController : public wxHelpControllerBase
 {
-    DECLARE_CLASS(wxRemoteHtmlHelpController)
+    wxDECLARE_CLASS(wxRemoteHtmlHelpController);
 public:
     wxRemoteHtmlHelpController(int style = wxHF_DEFAULT_STYLE);
     virtual ~wxRemoteHtmlHelpController();