Userdata migration for pst import
Differential Revision: https://git.kolab.org/D2413
A docker container for the migration command
Differential Revision: https://git.kolab.org/D2416
Use \config as fallback only
Better debug output and simplified dav import handling
Catch exceptions during xml parsing
Cleanup
Offer whitelisting folders
Don't abort on non-fatal errors
Remove this non-standard header
Encode mailbox names