Fixed some error handling for exception cases
Allowed correct http status codes to be returned when exceptions occur
Updated integration tests
Added travis-ci build status image
Fixed spelling, added payload type to error response
Merge pull request #6 from jembi/error-responses

Ensure correct error responses are returned when known exceptions occur
Bumped version to 1.0.2 for release
Merge pull request #7 from jembi/develop

Merge develop into master for 1.0.2 release