Initial commit

- Plugin generated.
- http://plugin-generator.jenkins-ci.org/

- Java package TODOs renamed to todos.
- Sample HelloWorldBuilder code removed.
- Maven pom.xml extended according to other existing plugins.
- Plugin description added to index.jelly.
- License added to file headers.
- .gitignore created.
- Simple Makefile that contains helper commands created.

- Eclipse project files generated.
- mvn -DdownloadSources=true -DdownloadJavadocs=true -DoutputDirectory=target/eclipse-classes eclipse:eclipse