Merge pull request #12 from kpartlow/master

Added in add additional headers to the InvocationHandlerStrategy to allow setting of the content-type for integration projects
- updated release notes
[maven-release-plugin] prepare release 1.12.0
[maven-release-plugin] prepare for next development iteration
Update README.md
Update README.md
Added resource loadable getActualUrl() to be used outside of UrlUtilities to allow loading of local resources.