do not send mouse tracking when ctrl/shift are pressed. Closes T39, T535
do not send mouse tracking when ctrl/shift are pressed. Closes T39, T535

Do just like xterm. It uses them to show some popups.
Ctrl+mouse makes box selection.

bssb/terminology,bssb/terminology,godfath3r/terminology,godfath3r/terminology,bssb/terminology,ihorlaitan/terminology,godfath3r/terminology,ihorlaitan/terminology,ihorlaitan/terminology