- redundantly clear mouse reporting and a few other states in
tput init/tput reset, for older urxvts.
- partial/full clear screens did cause flickering and possibly pixel
- droppings when urxvt viewed the scorllback buffer.
+ droppings when urxvt viewed the scrollback buffer.
- use current rendition style in DCH sequence.
- the 132/80 mode switch no longer forces a screen reset.