Allow regions anywhere comments are permitted (#217)

Allow regions anywhere comments are permitted.
Technically regions are only valid at BOL:
https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_comments
but since they're not interpreted by pwsh itself, we can be lenient.

See #216

Merge branch 'master' into refactor

Merge branch 'master' into refactor

Add a 5.0 preview invitation (#212)

Rename the preview to a beta

Fix ReadMe typo

Test stable ST version (#194)

Merge pull request #165 from michaelblyons/sublime-syntax

Rewrite syntax definition in YAML

Exclude development assets from package files

Add execution policy to sublime-build