vim: revert nerdtree mouse mode: doubleclick for everything

home/.vimrc

@@ -66,8 +66,10 @@ let mapleader = ","
   Plugin 'scrooloose/nerdtree'
   Plugin 'Xuyuanp/nerdtree-git-plugin'
 
-  " Open directory nodes with a single click:
-  let NERDTreeMouseMode = 2
+  " double click to open nodes:
+  " (for directory nodes with a single click, set to 2)
+  " (for all nodes with a single click, set to 3)
+  let NERDTreeMouseMode = 1
 
   " fancy start screen with recent files & bookmarks
   " CUSTOMIZE: you'll probably want different bookmarks