Version 3.4.5

Additions

• New extractor: all_tasks_empty_extractor to check if every task is empty for a single classification
• New reducer: first_n_true_reducer for checking if the first N items in a boolean list are True

Updates

• A flagged filed is added to transcription reductions that copies the output of low_consensus field. This is needed for auto line flagging in ALICE
• Various dependencies have been bumped to their latest versions

Bug fixes

• The dropdown extractor failed if all classifications were blank, this has been fixed