Please test 1.0.0-beta3

[elliottslaughter]

We once again have a new release. Please help us test as we continue to widdle down the issues for 1.0

See the release here: https://github.com/terralang/terra/releases/tag/release-1.0.0-beta3 (this includes binaries and a summary of changes since the last beta)

Like last time, let's try to make sure the release actually works everywhere we expect:

Test/OS	Linux	OSX	Windows
Test Suite w/o CUDA	✅ (GitHub Actions)	✅ (GitHub Actions)	✅ (AppVeyor)
Test Suite with CUDA
Rigel
Opt
Regent			N/A

Other todo items:

• Allow Terra to initialize when LLVM is not build with NVPTX backend #446
• Update documentation to include labels (was: New Terra release) #173 (document label([name]) and and for multiple functions)
• defer is not documented #154 (document defer)
• Please test 1.0.0-beta1 #323 (comment) (CUDA slowdown)
• Please document __for (and question about iterators) #333 (document __for)
• Problems testing terra[ Release 1.0.0-beta1 ] #366 (portability of Linux binaries)
• sync doc changes to README
• update CUDA in binary builds
• update LLVM in binary builds
• move Windows build to Github Actions
• update CHANGES.txt

Optional:

• Support Holy Build Box #388 (holy build box)

[elliottslaughter]

I believe I've resolved all of the major outstanding issues with this release. I'll be kicking off beta4 as soon as CI passes.

[elliottslaughter]

beta4 is now out, moving discussion to #542 .