Use `prolog:xref_*` hooks for diagnosing code coming from stdin

Bump patch version to 0.1.6

Add option for diagnosing source code coming from stdin

Update README.md

Bump patch version to 0.1.4

Bump patch version to 0.1.3

Add `download` entry to pack.pl

Bump patch version to 0.1.1

Update README.md

Update .build.yml

Update .build.yml

Initial commit