New roadmap published

[François de Metz]

Hi,

We have worked on a new roadmap for U.C.Engine.

You can found it here: http://docs.ucengine.org/dev/roadmap.html

This roadmap include a bunch of breaking change, like removing metadata
on many objects (excluding events of course).

If you are using these features, please provide a feedback.

As a side note, the ucengine.rb gem will be deprecated in favor of
ucengine.em (a new name very soon). We will update doc and old code
accordingly.

François