Automatic Drawing Generation

File Release Notes and Changelog

Release Name: 0.2.2

Notes:
Strongly separated model and paper matrix concepts and
updated their management using nested transformations.

Reworked the rendering process in a cleaner way by
propagating the "render" signal and using internal entity
states to let know what changed from the previous rendering.

Changes:
* Included adg-overrides.txt in docs (quite useless up to now)
* Corrected typo in some PARENT_CLASS definition
* Privatized AdgContainer
* Applied new AdgContainer and improved general source style
* gcontainer-1.99.2 required to avoid the awful variadic bug
* Updated README to reflect the website
* Added the ldim test program
* Added null matrix management
* Rewriting matrices management
* Emit matrix-changed signals on setting a different trasformation
* Implemented a cleaner rendering process
* Update doc makefile to avoid private header inclusion
* Updated requirements in doc