The draw color affects RenderClear() as well.  (thanks to the feedback form to whoever pointed this out)

Update SDL_HasClipboardText functions to return value based on clipboard content; Fix memory leak in fallback SetClipboard implementation

Thanks to Mason Wheeler for the fix!

Thanks to Patrick Baggett for the fix!

Previous change broke it.

Fixes Bugzilla #1314.

Thanks to Joseph Toppi for the fix!

--HG--
extra : rebase_source : be4596056669a0a9c7580355084b7f9eca345d78

Thanks to Joseph Toppi for the fix!

--HG--
extra : rebase_source : c450494b2c2e397098e50b621b01895fc587357f

Thanks to Brian Barnes for the initial work on this patch!

This was originally from a third party, under a different license than SDL,
 so it has to go.

Fixes Bugzilla #1264.

Thanks to Gueniffey for the patch!

Fixes Bugzilla #1191.

This patch is based on work done by Vittorio Giovara.

Obtain the correct environment in a thread-safe way when appropriate instead.

Fixes Bugzilla #1312.

Thanks to Bill Chenbin for the patch!

We need this for GLES2 support.

Fixes Bugzilla #1290.

Thanks to Gabriel Jacobo for the patch!

--HG--
extra : rebase_source : 80bd6c922b4e9c74582cc85d62462d87431315bd

Fixes Bugzilla #1292.

Thanks to Vittorio Giovara for the patch!

This solves the problem that on iPad you would get 1024x768 instead
of 768x1024 when calling SDL_GetDesktopDisplayMode(0, &mode)
See Apple's doc for UIScreenMode where is says:
"Most developers should never need to use the information provided
 by this class and should simply use the bounds provided by the
 UIScreen object for their drawing space."

We need the C runtime, which we don't link against, for __try/__except.