The only reason we had to keep this was for emscripten builds. We can
now use SDL v2 using “emconfigure ./configure CFLAGS="-s USE_SDL=2” and
a few additional flags.

SDL_Mixer v2 is not available in emscripten packages but either it will
be added at some time, or I will get rid of it altogether. An alternate
solution could be this code snippet I found:

    cd SDL2_mixer
    emconfigure ./configure --prefix=$(pwd)/dist --enable-music-ogg --disable-music-ogg-shared CFLAGS="-s USE_VORBIS=1"
    emmake make install

All these changes will allow us to more easily add Lol Engine as a
submodule of another Git project.

- removed 0 CR characters
 - removed 12 trailing whitespaces
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 - fixed 15 svn:eol-style properties

Using “Array” instead of “array” is now fully deprecated, and I replaced
the Log::Debug() etc. functions with msg::debug() etc. because log:: was
unavailable due to being a maths function.

Added up-to-date copyright notice and BOM to modified files, just in case.

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.

Though it still is not possible to create a new window from a thread that did not init SDL

- removed 0 CR characters
 - removed 0 trailing whitespaces
 - replaced 5 tabs with spaces
 - fixed 1 svn:eol-style properties

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

code from the Video to the Renderer class.

disabled until the engine code itself is ported to SDL2.

in that case. Currently only works with GCC.

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

properly detected using the generic SDL driver.

cannot used DirectX 10 because my video card only supports DX9, and there
is no compatibility layer. DX11 has feature levels for older hardware so
it would work with a DX9 card, but it's not available for WinXP.

whether to use the system mouse pointer or not.

have to duplicate this code to other places. Fixes the GTK app on the way.