Do Programming Projects 4,5, and 6 from Chapter 11, but separate the interface and the
implementation so that the implementation can be compiled separately.  Also, use the 
exact class names as stated, and put everything in your own namespace, named after your
user name.

Each problem is worth 25 points.  For 30 extra credit points, do the same as above for 
Chapter 11, Programming Project 9.

Considering the number of files you will have (each should include a driver), a make file 
with separate targets for each project should be provided.  Also, make sure everything is
contained in a directory named after your username, and create a bzipped tar archive of 
all the files.

Something like the following should be used from the directory above the folder 
containing the files:

tar cjvf `whoami`.tar.bz2 `whoami`