More database errors fixed (Dolphin migration related)

There is a field created by the migration tool mig_id. .... Some parts of Una dont like this field, and generate errors. Once your migration is 100% complete, you can remove these extra fields. My solution is below - you may have more or less tables depending on what you migrated.

ALTER TABLE bx_convos_cmts DROP COLUMN mig_id;
ALTER TABLE bx_forum_discussions DROP COLUMN mig_id;
ALTER TABLE bx_photos_entries DROP COLUMN mig_id;
ALTER TABLE bx_timeline_events DROP COLUMN mig_id;
ALTER TABLE bx_videos_entries DROP COLUMN mig_id;
ALTER TABLE sys_accounts DROP COLUMN mig_id;
ALTER TABLE sys_acl_levels DROP COLUMN mig_id;
ALTER TABLE sys_form_inputs DROP COLUMN mig_id;