Update the configuration of the Spring IO plugin

 - Update the version to 0.0.3.RELEASE
 - Apply the plugin to all projects
 - Add a dependency on the platform's versions

 With these changes ./gradlew clean springIoCheck -PJDK8_HOME=… builds
 cleanly
Merge pull request #332 from wilkinsona/update-io-plugin-configuration

Update the configuration of the Spring IO plugin