Update fakku.py

a update for a error i had this few last days. when fakku is under heavy load is possible to get a error 500 ( gateway error ) with the code addition the application will attempt *retry_attempts* times to re download the image if fails.
Update fakku.py

Fixed to match some of the standars
Update fakku.py

Indentation fix for line 38
Update fakku.py
Update fakku.py

added a command line parameter to allow the user to set a different value for the amount of retry attempts. 
added 2 variables for the Default amount of attempts and the Max amount of attempts 
Save now returns a Boolean if non 0 (or True) download success false otherwise. ( in case the download fail more than the amount expected of times. )
Merge branch 'silencio200-patch-1'

Add connection retry