Version 2.1.0

Dialogue engine version 2.1.0

This update improves the compatibility of the Dialogue engine & Cutscene engine. It also fixes small bugs and improves the manual.

LITTLE CHANGES

- Made option_objects compatible with my cutscene engine

- Added new example: signboard. It shows how to have only one object for different dialogue.

- Improved documentation / manual

- Changed help note name: Dialogue engine manual

BUG FIXES

- Fixed option objects showing error when textbox doesn't exist