Fixing Pyflakes compatibility.
Updating JSHint to v2.1.8. Fixing compatibility.
Adding changelog for v1.7.2 & bumping versions.
Merge branch 'master' into sublime-text-3

* master:
  Adding changelog for v1.7.2 & bumping versions.
  Updating JSHint to v2.1.8. Fixing compatibility.
  Fixing Pyflakes compatibility.