ITTE-848 - Adding task classes and diagrams for the current task. 
Adding back hangman (Was removed due to my mistake.)
Signed-off-by: Simeon Iliev <sisabski23@gmail.com>
ITTE-849 Adding Diagrams created with objectAid eclipse plugin and there
jpeg versions. The plugin can be found at
http://www.objectaid.net/update (update site via eclispe instalathion)

Signed-off-by: Simeon Iliev <sisabski23@gmail.com>