Nuke submodules
git subrepo clone git@github.com:kentnl/App-colourhexdump.git media

{"local":
  {"subdir":  "media"
  ,"action":  "clone"}
,"remote":
  {"url":     "git@github.com:kentnl/App-colourhexdump.git"
  ,"branch":  "images"
  ,"commit":  "e89cf0f"}
,"git-subrepo":
  {"version": "0.1.0"
  ,"commit":  "618d8bf"
  ,"origin":  "git@github.com:AndrewSmart/git-subrepo.git"}}