Added

• rules add attributes:
  • texts: get the text of multiple elements
  • htmls: get the html of multiple elements
  • htmlOuter: get the element's outer html
  • htmlOuters: get the outer html of multiple elements
• destructDocuments()：destroy all documents
• Elements class add htmlOuters() method

Changed

• destruct(): will destroy the current object
• range: when range is not set, the data structure returned changes
• Elements::each(): callback function parameters changed