- rulesPanel : modified the text and set line wrapping (no out of window
characters now)
- menuPanel : changed the logo text color to yellow
- made a JPANEL(!) method to show a humans info and navigate between
linked humans and added it to the treePanel (panel where the game will
take place)
(navigation doesn't work because a human's father and mother are
specified by their ID and my method compares the father's/mother's names
in the list of humans do show their info)