• Overloaded PPI::Document bool => true
  
• Overloaded PPI::Document "" => content
  (That is, ::Documents stringify to their content)
  
• Fixed PPI::Document::save
  
• Merged Leon Brocard's docs patch
  
• Cleaned up PPI::Node::_condition and documented conditions better (fixed #7799)
  
• Allow dropping of the initial PPI:: in class search conditions
  
• Fixed two instances of File::Slurp::read_file being called as a method