Merge pull request #7 from justinsb/master

Don't raise an error if the classes folder does not exist
update example for new release
[maven-release-plugin] prepare release serviceloader-maven-plugin-1.0.3
[maven-release-plugin] prepare for next development iteration
Don't fail when unable to loadClass
Merge pull request #8 from jamescarter/system-lib-cnfe

Don't fail when unable to loadClass