Support WebAppliationContext.
Remove unused spring-security-web dependency.
do some code re-factor and update example application.
Update README.md.
Merge pull request #7 from haily2706/master

Support WebApplicationContext.
[maven-release-plugin] prepare release dropwizard-spring-0.3.0
[maven-release-plugin] prepare for next development iteration
Adding license file.
updating copyright.