#8 Write release documentation (README)

[Celso Gomes Barreto Junior]

At this point it is very clear what will be released on the
first Implementation.

The objective of this task is to write the release
documentation for the first iteration of arandu. The
documentation must be compoused by:

* README file that must explain what is Arandu, how to
install and use. This must explain that this version is
very limited and graphical tools to generate exams and
interpret they are planned to the second and third
iteration.