Release of [email protected] to npm

Changes

• Added prompt locale files for PT (Portuguese) language.
• Added new Intent Forwarding feature that lets middleware forward intents to the message router.
• Simplified the build process.
• Fixed a bug in Session.validateDialogStack() that was causing it to always succeed.
• Added a ducktyping check to the RegExpRecognizer to fix an issue on Node-RED.
• Removed the deprecated node-uuid module that we weren't even using anymore.
• Added logic to Prompts to validate that the session object is passed in and throw a more meaningful error message when it's not.
• Updated package.json version.