Check validity for reference match
 Add warning box
Refactor display of data
Fix unduplicatons flow. Now the unduplication goes before the main
cleaning.
Add debug email print during Auth.
Fix first import flow
Pandas DF seem to create a copy of themselves when applying
modificatiosn such as df = df.astype(df). Those copies werent changing
the cached df. This commit applies changes on a column basis, which
makes the job. Not 100% happy though
Weird