Fix imports and remove lint
Add TODOS to views.py
Remove irrelevant TODO tasks.py
Add some TODOs
Add some more TODOs to fields.py
Fix species fields in models.py
Fix MergeTest
WIP make tests better
models.py save -> save_with_user
save -> save_with_user
tests.py save -> save_with_user
Remove "present" flag from model instantiation
Remove validation for alternate code.

There is no analogue to this field in OTM2
Skip test failing due to new-line character in un-quoted field
Add instance parameter to views, add instance field to ImportEvent

Also switches to get_object_or_404(...) for most .get(...) lookups
Skip *most* SpeciesIntegrationTests
Remove/Rename fields that have changed in OTM2
Reuse GEOM_OUT_OF_BOUNDS error for plot outside of instance (models.py)
Fix validate_proximity to use subquery (models.py)
fix TreeIntegrationTests.test_faulty_data1