Post-release version bump to 0.1.3a
Add a basic sapphire example
Remove graphite responses from error responses to client
Merge pull request #10 from praekelt/feature/issue-10-sapphire-example

Sapphire example.
Merge pull request #11 from praekelt/feature/issue-11-remove-graphite-response-content-from-error-responses-to-client

Don't include graphite error responses in responses to client.
Remove no longer necessary workaround in sapphire example for go-api-toolkit#23 (thanks @hodgestar)
Merge branch 'develop' into release/0.1.x
Version 0.1.3