master updated (bef514de4d3 -> ed122417b98)

[Po Lu]

oldosfan pushed a change to branch master.

      from  bef514de4d3 ; Fix typos
       new  4fa38af7c2d Remove touchscreen pinch event generation threshold
       new  ed122417b98 Improve scaling of tab bar items on high-density 
displays


Summary of changes:
 lisp/tab-bar.el      | 46 ++++++++++++++++++++++++++++-------
 lisp/touch-screen.el | 69 +++++++++++++++++++++-------------------------------
 2 files changed, 65 insertions(+), 50 deletions(-)