Rectify retrieval of extant Helsingin Sanomat strips …

[ExTechOp]

… (https://www.hs.fi/sarjakuvat/), also checked and corrected their metadata. Also rectify retrieval for "Anonyymit Eläimet" (anonyymitelaimet) and "Jäätävä Spede" (jaatavaspede) even though these strips have finished.

This PR addresses 2/3 of issue #103 and supersedes PR #104.

[Olf0]

Thank you for the nice, sounding branch name: While this technically makes no difference, when handling multiple PRs from different people at the same time (I wish that would be the case for Daily Comics) this is really helpful.

I know that "Anonyymit Eläimet" (anonyymitelaimet) and "Jäätävä Spede" (jaatavaspede) were concluded, hence I considered deleting them. Keeping them is fine, if old strips are repeated (as the English language "Calvin and Hobbes"), but makes no sense if only the same old comic strip is shown. I assume you have checked that, correct?

BTW (nitpick), commit messages should be written in present tense (I did not invent that, but after a while it started making sense for me): I will rectify that.

P.S.: The GitHub web-frontend makes it really easy to use Git without using the git command and without working on a local repository: You simply start working in the original repository, e.g. editing, deleting or adding files. GitHub's web-frontend will then guide you accordingly.
Hence there is no reason to delete your clone of the original repository, unless you no longer intend to work on that project.

P.P.S.: Also do not mind about posing PRs with multiple commits, or even commits which correct older commits in this PR: All commits in a PR can be squashed into a single commit when merging (and I usually do that).

[Olf0]

LGTM

[Olf0]

I would appreciated very much, if you consider implementing the (three, AFAICS) HS-comics which are not yet supported by Daily Comics in the table of HS-comics. You definitely have the skills to do that: The extract.js is the same, most metadata is in aforementioned table, it only additionally needs a "very typical strip, displaying the main character(s) and / or setting" and an image representing the comic (as described in detail in the "new comic guide").