Jekyll 3.0 compatibility

[SimonBackx]

This plugin isn't compatible anymore with Jekyll 3.0
I've forked your repository and made it compatible again. Feel free to pull it in.

https://github.com/SimonBackx/related_posts-jekyll_plugin

• Tests aren't working yet

[ChrisChinchilla]

Thanks @SimonBackx !

[mildronize]

Thanks @SimonBackx . It works for Jekyll 3.0.2.

[lawrencewoodman]

Great work, once the tests are working I'll pull it in.

[kleuter]

Any chance to have it merged? Thanks

[lawrencewoodman]

@kleuter yes, if you or anyone else fancy making the tests pass.