Merge pull request #13 from jdoconnor/master

version bump
Added Grape error presenter
Version bump: v0.1.7
Error messages can be blank
Merge pull request #14 from darbyfrey/error_formatter

Grape error presenter
Moving password authentication to a middleware
Version bump: v0.1.8
Updated README, authentication header method, rename platform_version in health check
Merge pull request #15 from darbyfrey/authentication_middleware

Authentication Middleware
Version bump: v0.1.8
Version bump: v0.1.8
Revert "Version bump: v0.1.8"

This reverts commit 6690fa0955ecc3eb43795f18fe91a1d91a69d62b.
Version bump: v0.1.8
Version bump: v0.1.9
Version bump: v0.1.9
Version bump: v0.1.9
Version bump: v0.1.10