Applied patch cb_cbp_win_wxContribItems_move_WXMAKINGDLL that moves the define of WXMAKINGDLL from the project level to the target level.
Removed define WXMAKINGDLL from 3 targets wxChart, wxCustomButton, wxFlatNotebook. This resulted in different def files and DLLs.
Changed external file dependency to be on DLL instead of export lib.
Removed wxpropgrid from the link library list.
Deleted CodeBlocks_Core_Exes_Plugins_wx28.cbp