Added database columns for keeping track of history offsets
More new logic for keeping track of if last history request had more data
Got load more history working in EditNoteActivity, still need it in comment fragments
Basic logic for load more in comments fragments. Parts may be broken, still need to reload models on success
Refetch models in comments fragments after history fetch
Getting closer but it's still not really working
Don't need include_tasks in FetchHistory
Move database migration logic
Don't ever write false has_more values in fetch history when modified_after > 0
Introduce a tag_id history field for better keeping track of history entries that correspond to particular tags
Create tag_id index for history table
Minor history fixes