Bump version
Return error immediately if http.Get() fails

This should fix the Travis tests, https://github.com/heroku/force/pull/17
Replace the shortened with the full link
Change test URL to apples robots.txt
Merge branch 'master' into v0.4.0-development

* master:
  Change test URL to apples robots.txt
  Replace the shortened with the full link
  Return error immediately if http.Get() fails
  Bump version

Conflicts:
	README.md