Add test case for problematic link merge of #504.
#424 #504 handle unique row bug without the moronic try/except, this also adds passing test cases for unique rows in the translations, favorites, and list tables
Merge branch 'dev' of https://github.com/Tatoeba/tatoeba2 into dev
Revert "Add test case for problematic link merge of #504."

This reverts commit 958232f3bf771d75ad44deab2e7bad8de5520a00.
Read unique constrained fields from model. #504
Comment on duplicate instead of merged sentence.

Closes #506.
#506 small optimization: add comments in one insert query
Make the dry option really dry.

Don’t even post comments or on the Wall.
Fix conflicting variable name. #504

This was obviously screwing up everything.
Improve link merging test case and fix self-links

Refs #504
Fix duplicates inside duplicates test case #504
Show percentage progress while deduplicating.
Reworded message to make it print green if alright
Fix YES/NO message.
Fix typo.
#515 Exlclude comments and contributions from bots on homepage and index.
#424 #512 #513 more ugly code to handle edge cases: moved things around in update_merge so unique collisions and deletions of them are done in separate functions now + merging links now uses its own thing instead of update_merge, making update_merge lean again as special cases are handled somewhere else + used the dedup fixture inside the new test cases so running them alone with the -k option makes them pass + refactored log merging to use insert_merge indirectly and added an exclusion Q filter to weed out self links in logs
#471 SQL update file.
#471 Updated the database/docs/tables
#511 Assigned the translatable strings to admin.pot