What?!
Doc++
Test vector component accessors.

Really. To be sure. Forever.
New class Array, usable instead of Vector for non-numeric purposes.
Using Array instead of Vector for *Texture::setWrapping().

Allows simple and convenient call with one value for all axes instead of
that unholy mess:

    texture.setWrapping(Texture2D::Wrapping::ClampToEdge);

Previous way (for entertainment purposes):

    textute.setWrapping(Math::Vector2<Texture2D::Wrapping>(
        Texture2D::Wrapping::ClampToEdge));
Documentation and example usage of textures.

Mentions some not-yet-done features such as Vector2i or proper texture
formats.
Assert that GLsizei is signed integer.
Aliases for integer and unsigned integer vector types.
Using integer vector aliases all over the place.
Adapted to Corrade changes.

Optimalizations in Corrade::TestSuite and Corrade::Utility::Debug leaded
to significant reduction of compilation time - on my machine it was
~5:38 before with building of unit tests enabled, now only ~5:00.
Updated FindCorrade.cmake from Corrade repository.
Adapted to Corrade changes.
No `using namespace std` anywhere.

Also added missing std:: prefix to remaining cases of std::size_t,
std::[u]int[0-9]+_t, std::sin() etc., std::exit().
Making some asserts internal.

They shouldn't be triggered by the user, so no explanational message is
needed (but exact position in source is).
Doc++, code cleanup.

Some things from Coding Style were moved to Corrade.
Thorough documentation review and update.

Now whole Magnum, Magnum::SceneGraph and Magnum::Math namespaces are
fully documented -- each class has at least "getting started"
documentation, larger modules are documented on separate pages.
Moved functions not related to particular Framebuffer to Renderer class.

Framebuffer::setViewport() and clear() should be non-static and operate
on particular framebuffer in the future.
SceneGraph: method chaining in FeatureGroup.
Doc: explicitly specify template specialization type.

Currently the documentation looked like "who would ever want something
else than 2D/3D objects", now it hints that the objects can be also on
steroids, err.., doubles instead of floats.
SceneGraph: document performance tricks with DrawableGroup.