Relax Rails dependency and depend on railties instead of rails itself
Upgrading fake_sqs, now it does support changing message visibility
Merge pull request #83 from mauricio/fake-sqs

Upgrading fake_sqs, now it does support changing message visibility
Merge pull request #81 from mauricio/rails-4

Relax Rails dependency and depend on railties instead of rails itself
Return true on running? check, otherwise it will never un

This is already part of #82 but given it still needs a lot of work, it would be nice to have this in before. If `true` is not returned here it will never see that the services are actually running and won't make all specs run on `unattended_spec`.
Merge pull request #84 from mauricio/patch-1

Return true on running? check, otherwise it will never run all specs
If no message do not attempt to set visibility timeout.