Updated for Houdini 16

1. Install Sublime Text 3 Build 3126 or later
2. Drop VEX.sublime-package file into Data/Installed Packages
   Example:
   C:\Users\teared\AppData\Roaming\Sublime Text 3\Installed Packages\VEX.sublime-package
3. (optional) Set $EDITOR variable in houdini.env.
   Example:
   EDITOR = "C:/Program Files/Sublime Text 3/sublime_text.exe"
Alt+E (in Houdini, with cursor in text editor) to open Sublime. Edit, save, close. Wrangle will update.
   Ctrl+Shift+T (in ST3) to restore previously saved documents, if they are still in temp folder.