1) The service methods will now be annotated with a @ServerOperation. Used during code-gen.
2) The code generator now exists.
3) Other updates to the app code and gwt.xml to make use of the code generator.

Patch by: amitmanjhi
Review by: rjrjr (desk review)

Review at http://gwt-code-reviews.appspot.com/301801


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@7849 8db76d5a-ed1c-0410-87a9-c151d255dfc7