v1.27.0

• Add Dockerfile and config for running blob service
• Remove check for correct content type from legacy service responses
• Fix incorrect usage of test package in trace middleware
• Minor updates to blob service configuration
• Restrict test environment variables to only necessary
• Add blob service, store, client, and related structures
• Update structure parameter source to return unchanged if multiple references applied
• Add EnsureAuthorizedService and EnsureAuthorizedUser to user.UserClient
• Update user client test helper to use latest mocking technique
• Remove unnecessary parameter from test RespondWith
• Add client response inspectors
• Ensure client data responses uses expected application/json content type header
• Parse client response body for actual error, default to standard error from status code
• Forcible drain client response body under all conditions
• Add ArrayParametersMutator for adding headers with multiple string values
• Update request values parser to handle generic map
• Add request ParseDigestMD5Header, ParseMediaTypeHeader, and ParseIntHeader
• Add request IsStatusCodeRedirection and IsStatusCodeClientError
• Log any failure or short write during responder response write
• Update logger to delete an existing field if new field value is nil
• When deserializing errors an empty error array returns nil
• Refactor application package to allow dependency injection
• Simplify application execution to automatically inject default dependencies
• Move all application/service/tool initialization from New to Initialize
• Move application version to application package
• Default all applications to use UTC local time
• Refactor response writer test helper to use latest mocking technique
• Add crypto.Base64EncodedMD5Hash
• Minor updates to unstructured storage
• Add and update test helpers
• Add common service API status router
• Add request.DecodeRequestPathParameter helper
• Add new request errors
• Remove unused errors.ErrorInternal
• Add unstructured storage backed by file system and AWS S3 with factory
• Add AWS API interface with actual and test implementations
• Update test config reporter to support scopes
• Add temporary file and directory test helpers
• Add test io.Reader
• Use dep dependency management tool rather than Godep
• Remove unnecessary Makefile targets related to Godep
• Move store/mongo package to store/structured/mongo
• Use correct import names for store packages
• Use io.Closer interface for store Close functionality
• Remove unnecessary store interfaces
• Remove unnecessary anonymous test mongo imports
• Refactor request responder for more flexible responses; use direct http.ResponseWriter
• Minor test refactor and cleanup
• Add shortcuts for request error comparisons
• Add streamed response from client in addition to existing data response
• Add ability to specify authorization mechanism at client creation
• Improve client tests
• Remove client timeout configuration, as unused
• Refactor request Mutator into RequestMutator and ResponseMutator
• Refactor id generation and validation
• Move validate package contents to more specific packages
• Replace generic usage of id.New()
• Rename crypto HashWithMD5 to HexEncodedMD5Hash for greater accuracy
• Add net.NormalizeMediaType
• Update maximum length for URL validation
• Structure parser and validator automatically check for unparsed
• Remove github.com/satori/go.uuid dependency
• Refactor common error test expectations
• Add pointer.To*, pointer.Clone*, and pointer.Default*
• Rename pointer.* to pointer.From*
• Update dependencies
• Update to Go 1.10.2