use QT_DEPRECATED macro instead of c++14 [[deprecated]]
use QT_DEPRECATED macro instead of c++14 [[deprecated]]

d-tk/dtk,NicolasSchnitzler/dtk,d-tk/dtk,rdebroiz/dtk,d-tk/dtk,d-tk/dtk,NicolasSchnitzler/dtk,d-tk/dtk,rdebroiz/dtk,rdebroiz/dtk,d-tk/dtk,rdebroiz/dtk,NicolasSchnitzler/dtk,NicolasSchnitzler/dtk