Merge pull request #7 from financialforcedev/feature/named-credentials

Added changelog

Remove spurious spaces injected by beautify

Add missing classes to manifest

Add missing class metadata files

Add missing form data serializable class

Wildcard inclusion of labels

Add labels

Add NamedCredential support

Remove beautify comments

Removed exception constants. They will be defined in ffhttpClient instead.

Separate unit tests for json serializable

Separate unit tests for blob content

Separate unit tests for json deserializer

Separate unit tests for mime