Patch: 'Older' and 'Newer' buttons on the blog are always absolute links

[wbazant]

I think the flow goes like this now:

• the blog theme calls methods prev and next to create the "Older" and "Newer" buttons
• this is earlier populated after working out what the previous page and the next page are, by the blog app
• the objects are nice Mojo::Paths coerced to a string, gotten from nice Statocles::Document objects, and they represent the right things throughout the application but it kind of breaks down in the way the application uses them.

After some bisecting I've found this got broken in the commit f7c8d5b98, which it has some changes to Statocles::Site::_fix_internal_links but I can't quite see what happened.

I've found this because the link checker complained about the links being broken - and it speaks to the quality of this patch that the link checker still complains about stuff - but you might prefer to have it rather than not

[coveralls]

Coverage remained the same at 89.921% when pulling dac17b1d4b8083781d0ac2978fb2df16ab8e725b on wbazant:master into 3e13a9040721b3306dd734d1189cb538c837ef03 on preaction:master.

[preaction]

Thanks! I, too, am not sure what happened, but it probably has a lot to do with the aborted, half-finished, reverted refactor.