title: Annoyingly Wide Left Gutter In IntelliJ 15
body: <p>I see something in IntelliJ 15 that I've never seen before, and I don't know how to make it stop.</p>
  
  <p>The left gutter, where breakpoints, line numbers, version control annotations, etc. are rendered, is several inches wide in my upgraded IntelliJ 15.  The bottom scroll bar stops at the border as well.  I can't find anything in general settings to make it stop.</p>
  
  <p>Is this a new "feature" in IntelliJ 15?  Can anyone tell me how to tell the IDE to go back to a rational width and stop wasting all my screen space?</p>