The containers no longer force the user to use the ptrdiff_t type for
size information. For convenience, size() now always returns an int,
and the size_s() method offers a way to handle arrays with more than
2 billion elements. Internally, we still use ptrdiff_t, though.

Since so much code had to be changed, I took the opportunity to get
rid of capitalised accessors for classes that are lowercase.

and 2) fuck the Visual Studio compiler that crashes when confused.

scene so that g_scene can be deprecated later.

core: calling InitGame() at the first tick of an entity. InitDraw is still uncalled yet
fixed mrpigeon and orbital accordingly

- removed 386 CR characters
 - removed 4 trailing whitespaces
 - replaced 189 tabs with spaces

we want Xinput but not D3D (ie. OpenGL).

properly detected using the generic SDL driver.