Add new logging handler: database
Merge branch 'master' into logging
Implement API log, implementing with MongoDB
Correct API result value
Merge branch 'master' into logging
Add view of API log records
Refine page for material management in dashboard
Refine delete material action. Complete the material management page
Add missing material template
Merge branch 'migration'
Merge with master
Improve the logging flow and view
Update dashboard: API records
Add ability to update material content
Implement new export request method
New exporting flow ready
Remove content from response when export is processing
Update migrating script. Add simple view for material in dashboard
Correct default value of blank description when migrating
Now allow get material zip and image separately