Restructure the Project

In the root directory there are lots of jar files. Professor Johnson
suggested that these jar files can be moved to the lib directory.  I
thought about this before and tried to do this but failed.  When the GWT is
create by running the command projectCreator.cmd and
applicationCreator.cmd, the path to these jar files is set.  Thus, after
the project is created, moving these jar files to somewhere else will give
a classpath error.

I hope there are other ways to fix the classpath problem.  Must do a
research on this issue.