CScintillaCtrl, CScintillaView & CScintillaDoc v1.73

Just to let everyone know that v1.73 of CScintillaCtrl, CScintillaView & CScintillaDoc has been released. Updates for this version include:

• Updated class to work with Scintilla v5.3.0. New messages wrapped include: SCI_SETCHANGEHISTORY, SCI_GETCHANGEHISTORY & SCI_GETSELECTIONHIDDEN.
• Updated CScintillaCtrl class to support being compiled with WTL support. Thanks to Niek Albers for suggesting this update.