• Documentation improvements (gh#333, gh#334, gh#342, gh#343, gh#344)
  
• Fixed a number of broken links in POD (gh#344)
  
• Added download_detail install property (gh#190, gh#344)
  
• Added download_rule method (gh#190, gh#344)
  
• The fetch hook and other plugins that use the same file hash can
  and now should include a protocol field (gh#190, gh#344)