v1.9.0

• Fixed null exception when copying username/password from entry which has none defined.
• Fixes #188 - Show banner to users to suggest activating autofill (@ATofighi)
• KDBX: Fix merging of files with incoming deleted objects.
• Add support for permanently deleting groups and password entries. #99
• When a conflict is detected during save, automatically merge files #80
• Dropbox: Fixed conflict detection.
• Google Drive: Implement rudimentary conflict detection #34