[HP3562A] port HP3562A app to Py3k/Qt5

[qt5] fix QMplCanvas

port HPGL plotter emulator to PyQt5

[py3k] beginning to port to py3k

fix README

copyright updated

add an interactive session helper file

fixes in HP8904 device description

add more commands to HP_8904 device

add some commands to HP8904 device

(0) -10 +10 tip

mercurial