Things left to do after killing Qt4 (obtained by grepping for Qt4 and 'Qt 4'): * update INSTALL.cmake * update INSTALL.MacOSX * update cmake * check whether development/autotests/keytest.py really needs QT4 investigate references to Qt4 in keytest * update or remove development/lyx.rpm.README * update or remove development/lyxserver/server_monitor.cpp * update or remove development/tools/count_total_lines_of_compiled_code.sh