InstaHelper

- Loot: the dungeon list is split into its hubs (Hellfire Citadel, Coilfang Reservoir, Auchindoun, Tempest Keep, Caverns of Time, Isle of Quel'Danas), with a thin line between them.
- Loot and Raids: "List in Group Finder" now adds to your listing instead of moving it. Pick a dungeon and list it, pick another and click "Add to Group Finder": you are listed for both. On a listed instance the button takes only that one off ("Remove from Group Finder"); on the last one it takes the listing down ("Leave Group Finder"). Dungeons and raids are not mixed in one listing: a raid on a dungeon listing (or the other way round) still moves it.
==> Stamped 0.1.5 - 2026-10-03 into CHANGELOG.md
    note: instahelper.toc still says 0.1.4 - './build.sh 0.1.5' sets it and packages the zip