Graph changes. GUI changes.

Added some new methods to graph. Graph returns mostly accurate
results in regards to the path of routes to take.

Still need to account for closures as well as determine why invalid
route combinations still appear.

Uploaded week8 time log for brian.

Added some defects to LOGD.
Added issue to ITL.

Signed-off-by: Brian Powell <powellb1@my.erau.edu>