Simplifying package structure.
Simplifiying util package structure.
Reorganizing the demo code.
Cleaning up the ReverseFilter example
Working on ProjectSetup.html
Cleaning up the tutorial module.
Working on ProjectSetup.html
Working on ProjectSetup.html
Renamed to ProjectStructure
working on tutorial
working on tutorial
Updating the tutorial document.
Working on Project Object Model
Working on ProjectObjectModel.
Updated introduction page with tutorial source code link.
Starting to add GWT Module XML page.
Making directive slightly more robust.

/gwt-angular/issues/36
Renamed the closure and function method names.

Coming back to the code, the names function and closure were a bit
confusing, because I couldn't tell what they were supposed to do, i.e.
whether they were creation methods or not. Changed the names to call
and exec, which makes a bit more sense to me.

Still working on the directives.

https://github.com/kyoken74/gwt-angular/issues/36
Separated the Directive interface from Function.

https://github.com/kyoken74/gwt-angular/issues/36
Reducing the noise in the code.

https://github.com/kyoken74/gwt-angular/issues/36