Add 'Close Empty Windows' option.'

src/config-schema.coffee

@@ -21,7 +21,6 @@ module.exports =
       followSymlinks:
         type: 'boolean'
         default: true
-        title: 'Follow symlinks'
         description: 'Follow symbolic links when searching files and when opening files with the fuzzy finder.'
       disabledPackages:
         type: 'array'
@@ -54,7 +53,12 @@ module.exports =
       destroyEmptyPanes:
         type: 'boolean'
         default: true
-        description: 'When the last item of a pane is removed, remove that pane as well.'
+        title: 'Remove Empty Panes'
+        description: 'When the last tab of a pane is closed, remove that pane as well.'
+      closeEmptyWindows:
+        type: 'boolean'
+        default: true
+        description: 'When a window with no open tabs or panes is given the \'Close Tab\' command, close that window.'
       fileEncoding:
         description: 'Default character set encoding to use when reading and writing files.'
         type: 'string'

src/workspace.coffee

@@ -682,7 +682,7 @@ class Workspace extends Model
       @destroyActivePaneItem()
     else if @getPanes().length > 1
       @destroyActivePane()
-    else
+    else if @config.get('core.closeEmptyWindows')
       atom.close()
 
   # Increase the editor font size by 1px.