@api: One attribute to rule them All

[via Digitalmars-d]

On Tuesday, 6 January 2015 at 12:07:21 UTC, Joseph Rushton 
Wakeling wrote:
> As a library writer, I don't think you can responsibly expect 
> users to bear the burden of fixing undocumented breaking change.

I agree, maybe just replace "module" with "library". Also make 
"module" mandatory. It takes no extra keyword if it always is the 
first token.

Then the compiler can be more lax with "module" files and more 
strict with "library" files.