Due to an SSL/TLS issue with hamcrest.org, the Dokka task fails with the
following.
> Failed to download package-list from https://hamcrest.org/JavaHamcrest/javadoc/2.1/package-list,
> this might suggest that remote resource is not available, module is
> empty or dokka output got corrupted
See: https://github.com/hamcrest/JavaHamcrest/issues/280
As a workaround, this commit switches to javadoc.io to reference the
Hamcrest Javadoc APIs.
xixingya
Sam Brannen
Brian Clozel
Sébastien Deleuze