Changes between 7.1.6 and 7.1.7

Plugin changes

• adminchannel: fix a very old bug in NUH (hostmask) handling [#2221]
• reddit:
  • add flair text to submission output [#2209]
  • further improve link matching [#2208, #2216]
• wiktionary: correctly handle multi-paragraph etymologies [#2214]

Core changes

• Added an alert if the IRC server registers the bot as a client using a
  different nickname than what's set in core.nick [#2215]