Userscript with various enhancements

[Aran-Fey]

I made a userscript that improves the website in various ways. Feature overview:

• The solution code is automatically generated and submitted when you solve a puzzle. (With some caveats: The instructions must be relatively simple, like "row X" or "first column". Some URL shorteners break this feature. And finally, it currently only works with SudokuPad.)
  
• If you have the puzzle portal open in a background tab when you solve a puzzle, the puzzle icon immediately changes from "unsolved" to "solved".
  
• URLs in comments (of a puzzle) are turned into clickable hyperlinks.
  
• Pressing Ctrl+C while an entire row/column is selected will copy the digits to your clipboard. (SudokuPad only.)
  

To use this script, make sure you have a browser extension like TamperMonkey and then install the script by clicking this link.