* Add `custom_parser` to `DragValue`
* Add `custom_parser` to `Slider`
* Add `binary_u64`, `octal_u64`, and `hexadecimal_u64` to `DragValue`
* Add `binary_u64`, `octal_u64`, and `hexadecimal_u64` to `Slider`
* Fix formatting and errors in docs
* Update CHANGELOG.md
* Fix CI errors
* Replace manual number parsing with i64::from_str_radix. Add support for signed integers.
* Update CHANGELOG.md
* Change documentation.
* Fix documentation.
* Fix documentation.
* Remove unnecessary links.
* Allow cursors to be linked
* Link cursors in demo
* Refactor cursor memory to deal with removal of plots
* Refactor PlotItem::on_hover to produce a list of cursors
* Use a separate `LinkedCursorsGroup` type to link cursors.
* Refactor `Cursor`.
* Inline `push_argument_ruler` and `push_value_ruler`.
* Update documentation
* Update doc reference