Changes between 7.1.5 and 7.1.6

Plugin changes

• reddit: fix regression in shortlink (redd.it/<postID>) handling [#2201]
• url: fix tripping on HTML character entities like ' if running on
  Python 3.4+ [#2204]
• wikipedia: add mobile links to URL handling [#2201]

Core changes

• Detect UTF-8 locale on Windows [#2174]

API changes

• web.decode(): use Python's built-in HTML character entity decoder if
  available [#2204]
• Fix minor documentation error [#2196]