title: "Down arrow" moves cursor to end of line - how to turn it off
body: <p>In IPython Notebook / Jupyter, arrow up/down keystrokes within a cell are handled by CodeMirror (as far as I can tell). I use these actions a lot (re-bound to control-p / control-n) to move between cells; but at the end of every cell, the cursor <strong>moves to end of line first</strong> before jumping to the next cell. This is counter-intuitive and, to me, rather distracting. </p>
  
  <p>Is there any way to configure CodeMirror to make this move down to be just that - a move down?</p>
  
  <p>Thanks!</p>