0. fresh:
  mode=0 uploadLimit=0 prefs={'up_limit': 0, 'alt_up_limit': 10240, 'scheduler_enabled': False}
1. setUploadLimit 2500000 (normal mode):
  mode=0 uploadLimit=2499584 prefs={'up_limit': 2499584, 'alt_up_limit': 10240, 'scheduler_enabled': False}
2. setPreferences alt_up_limit 3072000:
  mode=0 uploadLimit=2499584 prefs={'up_limit': 2499584, 'alt_up_limit': 3072000, 'scheduler_enabled': False}
3. toggleSpeedLimitsMode (to alt):
  mode=1 uploadLimit=3072000 prefs={'up_limit': 2499584, 'alt_up_limit': 3072000, 'scheduler_enabled': False}
4. setUploadLimit 1024 in ALT mode:
  mode=1 uploadLimit=1024 prefs={'up_limit': 2499584, 'alt_up_limit': 1024, 'scheduler_enabled': False}
5. setPreferences up_limit 5120000 in ALT mode:
  mode=1 uploadLimit=1024 prefs={'up_limit': 5120000, 'alt_up_limit': 1024, 'scheduler_enabled': False}
6. toggle back to normal:
  mode=0 uploadLimit=5120000 prefs={'up_limit': 5120000, 'alt_up_limit': 1024, 'scheduler_enabled': False}
7. setPreferences up_limit 0:
  mode=0 uploadLimit=0 prefs={'up_limit': 0, 'alt_up_limit': 1024, 'scheduler_enabled': False}
