Fix endpoint to check web conectivity.

vcap_dev_setup fails because api.cloudfoundry.com reached end of service.

Change URI
http://api.cloudfoundry.com/info -> http://api.run.pivotal.io/info
Merge pull request #231 from jacopen/master

Fix endpoint to check web conectivity
Merge branch 'master' of https://github.com/cloudfoundry/vcap