Jsoneditor

- Fixed 557: inner contents of the scrollable area being displayed outside of
the editor (on Chrome only).

- No more grayed out icons of the context menu, see 532.
- Added Sort and Transform buttons to the main menu.
- Fixes and improvements in the Transform dialog.

- Implemented JMESPath support for advanced filtering, sorting, and
transforming of JSON documents.
- Implemented a new option `modalAnchor` to control at which part of the
screen the modals are displayed.
- Fixed 544: JSON Schema errors sometimes not being displayed in the
editor.

- Fixed a bug in a translation text.

- Implemented advanced sorting for arrays.

- Better handling of JSON documents containing large arrays:
- Only displays the first 100 items of large arrays,
with buttons "show more" and "show all" to render more items.
- Search results are now limited to max 1000 matches,
and search does no longer expand the paths to all matches
but only expands the path of the current search result.
- Fixed index numbers of Array items not being updated after sorting.