Update the log mechanism, add more fields
Resolve conflict before merging with logging
Update the collection export
Fix incorrect collection JSON when exporting
Add function for checking missing modules
Add new function to migrating script
Fix issue of saving closed material file
Complete the collection migrating script
Add version into migrating script
Move a function from migrate.py to migrate_col.py
Add function to correct some persons UIDs
Correct case with ugly person ID
Fix some bugs inside migration and filtering materials
Add view for API stats