Ability to set log level, lots of debugging messages
Turn on debug logging during tests, simplified test cases for HTML ripper
Fix fusktator ripper, added test
Fixed gifyo, added test
Added tests for *all* rippers
Adding a few album-guessing URLs
UI shows already-downloaded files as 'completed' instead of 'errored'.
No more "Retrieving" lines in UI log window.
WARN log levels all around.
Mostly for #147
