Classes tree for the yoursqld sources.

                                           -----------------------
                                          |    Configuration      |
					  | ysqld_configuration.h |
					   -----------------------
					     /                  \ 
					    /	                 \
			    ---------------------               --------------------	      
			   |    Application	 |             |    Connexion       |
			   | ysqld_application.h |	       | ysqld_connexion.h  |
			    ---------------------		--------------------
					                          /               \
					                         /                 \
				                          ----------------    -----------------	    
				                         |    Server      |  |   Session       |
				                         | ysqld_server.h |  | ysqld_session.h |
				                          ----------------    -----------------
