add Rspec/simple spec
add travis
hmm actually we don't need to test against all these versions

doing only 1.9.3 (api/psmgr are on it) and the latest ruby
boring

but we need rake for bundle exec rake
more standard pattern to trigger specs
Merge pull request #13 from heroku/pedro-rspec

add Rspec/simple spec
Adding retry logic and exception handling for dynamodb
Removing begin since we're not rescuing
fix syntax/move helper method to main class
add spec for retrying on error
more standard initialization
cosmetics
some ideas on how to do the error proc thing