Add MIME type detection when uploading material files
Merge branch 'migration'
Remove some contraints inside material model
Fix issue with unicode when creating Zip file
Fix issue with unicode when creating Zip file
Not perform export right when creating material. Auto request for PDF creation when missing
Improve migration; and option for exporting of material
Add record for original ID, update migrating performance
Add script to request creating all material PDFs
Enabled indexing and searching on person
Update the setting variables
Improve search URL and query
Update the API root page
Add collection name into ZIP file
Lighten the returned materials in listing calls
Make material ID read-only at posting time
Shorten the ID of materials
Reduce length of the material ID
Now having material count inside category detail
Correct the function converting categories
Add condition to converting cat script
Add more info to Person, avatar included
Update indexed data of person
Create separate models for persons and roles
Return material count of person