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.

include/wx/gtk/filepicker.h

@@ -105,7 +105,7 @@ private:
     // common part of all ctors
     void Init() { m_dialog = NULL; }
 
-    DECLARE_DYNAMIC_CLASS(wxFileButton)
+    wxDECLARE_DYNAMIC_CLASS(wxFileButton);
 };
 
 
@@ -183,7 +183,7 @@ private:
         m_bIgnoreNextChange = false;
     }
 
-    DECLARE_DYNAMIC_CLASS(wxDirButton)
+    wxDECLARE_DYNAMIC_CLASS(wxDirButton);
 };
 
 #undef FILEDIRBTN_OVERRIDES