MWScrape: Make toArray() static / Remove $unnamedId / Formatting

Why should we prefix unnamed template parameters when MediaWiki doesn't, either?
Merge branch 'master' of https://github.com/nmlgc/TouhouPatchCenter
Initial release

I'm always a bit shy to commit prototype code - but since I've now decided on the whole design, you can expect more incremental commits from now on.