joystick/wiiu: minor style nits

video/wiiu: Don't replace an already running ProcUI

cmake: Don't link against stub libraries

Update build instructions

render/wiiu: Fix scaling mode for windowTex

Previously the driver would always end up using point scaling as the final windows texture scaling mode and thus the screen output

Added patch note for Android Studio support

Don't X error in SDL_CreateWindow with unsupported GL attributes

Fixed Mac OS X build

Fixed bug 3460 - docs/README-macosx.md: g++fat.sh should be g++-fat.s…

…h in universal build command

Elisée Maurer

I scratched my head for a while until I realized there's a typo in the command listed in the instructions for universal Mac builds: https://hg.libsdl.org/SDL/file/c1bb718f6c3f/docs/README-macosx.md#l24

It should say `g++-fat.sh` but instead it says `g++fat.sh`, which makes `./configure` fail with a C++ preprocessor error.

Backed out commit 4de94185790e, this causes Visual Studio build failu…

…re on buildbot