* add text/vnd.tiddlywiki-multiple to editor type dropdown
* de-DE add text/vnd.tiddlywiki-multiple to editor type dropdown
* move text/x-tiddlywiki to classictools plugin
* remove image/x-icon from all languages files
* move type text/vnd.tiddlywiki-multiple to Developer
- Add translations for untranslated items
- Unification of terms (translations differed by multiple translators)
- Add signature of `author` (Includes translation assistance for dajya-ranger. I also added his signature)
It's a lot of updates, but I've tested it on my TiddlyWiki.
Help etc. are still lacking.
