1.8.0: Improve styling options

Added new abilities for styling handles/pips based on their indexes.

• a new [data-handle='n'] was added for each handle
• a new argument was added for formatter() and handleFormatter()
  • before: formatter = v => v, handleFormatter = v => v
  • now: formatter = (v,i) => v, handleFormatter = (v,i) => v
• bump versions of dependencies

1.7.1: Bugfix for :global() changes

Merged a bugfix from @maxiruani for the :global() changes in svelte core.

1.7.0

Merge branch 'min-max-zero-#20' into main

1.6.0: add event dispatchers for start/change/end interactions

- Also provide the values of the handles and indexes changed
- Add some tests for the dispatched events
- Update Readme.md

the Change event will also fire for keyboard interactions, but
currently I decided to avoid the "start" event for keyboard users
as it is kind of tricky to implement, and the "end" event is impossible
to implement. I may consider a focus/blur event at a later time.

resolves: #6

1.5.0

bump version, build dist folder

1.4.0

add mjs/js dist files, add license, bump version

1.0.0

bump to version 1