SDL2 2.0.4 is out!

[Gianfranco Costamagna]

Hi fellow pkg-sdl maintainers!

You should be already aware of this, but SDL 2.0.4 is finally out!

I took today the freedom to package it, and close 5 bugs against the package, as well, as fixing the copyright file,
and do something else.

* Fix copyright lintian warning.
* Update copyright to new release.
* New upstream release (Closes: #788688, #798265, #788540)
- Drop patches use-default-screen and
fix_joystick_misc_axes.diff, applied upstream.
* Add Files-Excluded keyword to copyright file, allowing to
import a new release with uscan command. (Closes: #804662)
* Create new -doc package, and move examples into it (Closes: #739430).


you can see a successful build here
http://debomatic-amd64.debian.net/distribution#experimental/libsdl2/2.0.4+dfsg1-1/buildlog

Since I'm not actively part of pkg-sdl team, I put the target to UNRELEASED, and added a TODO in the changelog file
(I also pushed everything to a new experimental branch, feel free to rework/drop if you don't like my work).

Some issues are still open:
- bump SONAME?
- drop dbg package since it is useless now?

I leave the points open for discussion, seems that the API changed a little bit, as well as the ABI, so I think a transition is needed.

The packaging looks good to me, if we fix the above two points.

I think after an experimental package accepted we will be able finally to see how many packages needs fix/rebuilds
a quick look shows that the API changed, but just because of new additions, and just a few structs were renamed.

So if we are lucky it should be a matter of binNMUs of reverse dependencies and some sed in the source code.

What do you think about?

Have a nice new year,

Gianfranco