Reverse horizontal scrolling as well

For great consistency.
Reverse my Logitech Performance Mouse MX

There must be a better way to identify ALL the pointing devices, but I'm
lazy right now.
active-window shows the class of the active window

I'll use that for example for my "close tab" mouse button binding in a
minute.
xbindkeys: Close/reopen tab mouse action

If in a browser (x-www-browser), send Ctrl-W on button 10 (lower thumb
button on my Logitech Performance Mouse MX) press and Ctrl-Shift-T on
button 10 press when shift is held down.
Start xbindkeys automatically, if installed