Build all lines numbers as a single chunk of html

src/atom/editor.coffee

@@ -156,7 +156,7 @@ class Editor extends View
     @renderer = new Renderer(@buffer)
     @undoManager = new UndoManager(@buffer)
     @renderLines()
-    @gutter.renderLineNumbers(@getScreenLines())
+    @gutter.renderLineNumbers()
 
     @setCursorScreenPosition(row: 0, column: 0)
 

src/atom/gutter.coffee

@@ -9,10 +9,9 @@ class Gutter extends View
     @div class: 'gutter'
 
   renderLineNumbers: ->
-    @empty()
-
     lastRow = -1
-    for row in @parentView.bufferRowsForScreenRows()
-      @append $$ ->
+    screenRows = @parentView.bufferRowsForScreenRows()
+    @html $$ ->
+      for row in screenRows
         @div {class: 'line-number'}, if row == lastRow then '•' else row + 1
-      lastRow = row
+        lastRow = row