Aurex upgrade path

[J7mbo]

There currently isn't an upgrade path for the project's base framework files. Symfony talks about how they do their upgrades here, so something similar needs to be employed for this project.

[raphaelcazorla]

I would be glad to help...don't know how but tell me :)

[kabudu]

Symfony endeavours to not break backward compatibility, but when they do, they give you enough advance warning by deprecating functionality and then finally removing that functionality in later versions.