Fix ftp connection test experience
Remove warnings in case of failure
Fix CS
Merge pull request #594 from romainneutron/ftp-export-ux

[3.9] Fix ftp connection test experience
Merge pull request #596 from romainneutron/ftp-exceptions

[3.9] Remove warnings in case of failure
Fix usage of task manager in strict standards context
Merge pull request #595 from romainneutron/task-manager-fix

[3.9] Task manager fix
Fix Sqlite db regeneration in case of deleted db
Fix CS
Add missing proxies
Merge pull request #597 from romainneutron/sqlite

[3.9] Fix Sqlite db regeneration in case of deleted db
Merge pull request #598 from romainneutron/fix-cs

[3.9] Fix entities CS
Merge pull request #599 from romainneutron/missing-proxies

[3.9] Add missing proxies
Add FtpExport entities
Add FtpExport entities
Add FtpExport repositories
Switch to FtpExport entities
Remove ftp entities
Move substituion logger from class method to controllers
Fix #1414 Add immediate thumbnail substitution after success download