A userscript that adds "unknown license" message in repos with no license set

• This userscripts adds a missing license block into the repository's top nav
• The block contains:
  • Link to choosealicense.com; wrapping all the content
  • A license icon (yellow)
  • "unknown license" text (yellow)
• Idea from:https://github.com/isaacs/github/issues/1528
• Clickthis link to install from GitHub; or, install fromGreasyFork orOpenUserJS.

• Update dependencies.

• Update mutation script.
• Update utils script.

• Update mutation script.

• Initial commit.
• Fix JS error.