Removing error messages that are not being used
Releasing v0.4.0
Merge branch 'master' of https://github.com/gfranko/amdclean

* 'master' of https://github.com/gfranko/amdclean:
  Moved the "Used By" section to the bottom
  Fixed formatting/Added Links
  Added "Used By" section
  Added the --save-dev command to the README documentation