BOSS package version 21.0:

- Added Linux build group
- Added Linux64 platform to all projects
- Added Linux64 to "All platforms" build group
- Added "All platforms (not Linux)" build group

- BOSS package version 20

- Removed NavigationHistory. Now Collectables without an Anchor change their CollectableTarget once they're collected to match the IDpath (from the RootStoryItem) of the ActiveStoryItem. Anchored ones don't so they can't be placed back. They always get unanchored though once collected so that they can be arranged by the user in the collection container/parent they're placed into (which is usually a StoryPoint)
- Added IStoryItem/TStoryItem GetIDpath

BOSS package version 19.0

- Added Looping to ImageStoryItem/ImageStoryItemOptions
- Fixed CropStoryItems button action at StoryItemOptions

BOSS package version 18.0

- can toggle visibility of StoryItems with UrlAction=UrlActionTarget (using an ID path)
- can show StoryItems with UrlAction=+UrlActionTarget (using an ID path)
- can hide StoryItems with UrlAction=-UrlActionTarget (using an ID path)
- UrlAction/UrlActionTarget D paths are always resolved using StoryItem (not StoryPoint) resolution unless a '@' prefix is used (can also be used just for a subpath)

- BOSS package version 16.0

- Changed Collectable to CollectableTarget (now Collectables specify via ID path where they're to be collected to)

BOSS package version 15.0 (removed backpack button from sidebar - wil…

…l potentially have many "backpacks" in the future)

- BOSS package version 14.0 (implemented backpack and collectables)

- added SAVED_STATE_FILENAME, BACKPACK_FILENAME to READCOM.App.Messages.pas
- added Collect(IStoryItem) method to IStory
- added btnToggleBackpack and property change checks to toggle button event handlers to StoryHUD
- added FMoved to StoryItem to check on MouseClick if object did move, Collectables are passed to Story.Collect when clicked (not when moved)
- added Story.Collect at StoryForm (to move items back and forth between ActiveStoryItem and Backpack), repurposed UrlAction='0' to toggle backpack visibility (since '~' can now be used to move to HomeStoryItem), Loading/Saving backpack automatically when handling app saved state, Setting FBackpack.StoryPoint=true and FBackpack.UrlAction := '0' (to close backpack when clicked in its empty area)

BOSS package version 13.0

fixes to ID path resolution
new options panes with ToggleVisible (non-Hidden) and ID textfield (had to make modal though to receive focus, thus can't close by clicking to outside area like before)
structureview now shows all hidden items in EditMode

BOSS package version 12.5

added support for #x in child parts of ID paths, e.g. /a#2 means 2nd occurrence of ID=a under RootStoryItem. #1 is implied (the default if the first matching child)

BOSS package version 12.4

Removed Padding at ScrollButtonsMain and added Margin so that it doesn't overlap the sandwitch button