Add default 'notfound.jpg' image.
Organize import.
Order history.
Merge pull request #30 from blacklead/notfound

Enhancement for #29
Application restart is required when notfound.jpg is placed in home directory.
Fix test.
Fix test.
Add logging.
Test fails if notfound.jpg exists in home directory.
Add testing mode for item pictures.
Testing mode for item pictures.
Add logging.
Debug.
Debug.
Debug.
Debug.
Debug.
Remove debug message.