Modifies the addon name, version, and other basic information.
Fixed a problem that empty <span> tags are generated at the start or end of selection when highlighting. Optomized hightlight functions.
Fixed a problem that empty <span> is left after deleting highlights.
Allows infinite undo and no operations are forced to be saved afterwards.
Added "data-sb-mark" attribute for all ScrapBook additions. "Removes all highlights" now removes all ScrapBook additions, including link and inline or sticky annotations.
Renamed the name of inline annotations from "underline" to "inline" for consistency.
Fixed a problem that element outline style is corrupted after moseover by DOMEraser, and that empty <span> are left after removing Scrapbook additions with DOMEraser.
Renamed "data-sb-mark" to "data-sb-obj". Added data-sb-obj to ScrapBook generated css tags.
Fixed a problem that some Scrapbook additions (such as sticky comments) cannot be correctly removed, and a problem that some objects are not correctly removed with "Remove All Scrapbook Additions" command.

- merge "sticky-absolute" and "sticky-relative" to "sticky", no longer use "sticky-header" and "sticky-footer" as sb-obj
- rename "stripNode" to "unwrapNode"
Undo button can now be disabled whenever no history is unavailable. Editing inline annotation and editing or moving sticky annotation can now be undone.
Fixed an issue that deleting data with sub-directories gets an error.
Fixed an issue that selecting multiple folders to delete gets no error message. ERROR_MULTIPLE_SELECTION no more mention about move since it's OK.
Allows multiple deletion containing folders.
Fixed an issue that frames cannot be correctly saved.

- Also fixed a potential risk of name conflict on index_###.css files.
- Frames naming changed from index_#.html to index_###.html, same as files.