Merge branch 'release-1.6.1' into devel
Use event listener instead of HTML onclick attribute for saving and deleting of sticky annotations.
Update a component interface for better compatibility.
Adjust sticky handling: they are now draggable only in the edit mode, have undo history saved only once at the pre-edit, and are automatically saved on page saving.
Merge branch 'fix-misc' into devel
Merge branch 'adjust-sticky-handling' into devel
Modify version number.
Merge branch 'release-1.6.2'
Scrapbook X 1.6.2:

- Adjusts handling of sticky annotations. They are now draggable only in the edit mode, have undo history saved only once at the pre-edit, and are automatically saved on page saving.
- Updatea a component interface for better compatibility.