Shifted annotation code back into the core indexer.
Cleaner annotation class structure.
Refactored annotation creating and fixed login logic.
Adding initial support for Json serialisation of the category lookup.
Richer taxonomy extraction and linking up.
Picks out dates and subjects.
Switched to fill timestamps, and tested against the full export.
Added more range to the test annotations.
Added a (currently failing) Annotator test.
Added basic test of annotator including levels.