Add new method Wikimate::undelete()

[Xymph]

New support for API call, with version-dependent undeletetalk parameter.
This clears my backlog of prepared code :) and I think it's a good time to wrap up v1.1.0.

[waldyrious]

LGTM!

[Xymph]

Alright, so agree to wrap up v1.1.0?
This needs to include a link to #153 in Changelog, since I forgot that this time.

[waldyrious]

Alright, so agree to wrap up v1.1.0?

Yep! Let's go!

This needs to include a link to #153 in Changelog, since I forgot that this time.

Ah, interesting. We might want to add some sort of markdown validation in the changelog checks, so that we confirm not just the presence but also the syntactic validity. I believe markdownlint is able to do this. (We'd have to disable the rule about duplicate headings though, by adding <!-- markdownlint-disable no-duplicate-heading --> to the top of the changelog file.)

[waldyrious]

Wait a moment... we already have a markdownlint check (#138, #146). Somehow it failed to detect the issue. Could it be that the **/*.md glob is failing to detect the files at the root of the repo? Either way, we should look into making the output of that script verbose, so that we at least know which files it looked into (even if it found no issues).

[waldyrious]

Opened #154 to address the above.