Annotated hudson.model.Build and hudson.model.Run, minor fixes in Javadoc

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>
Merge pull request #1264 from synopsys-arc-oss/build_classes_refactoring

Annotated hudson.model.Build and hudson.model.Run, minor fixes in Javadoc