[backup/portable] properly write the eid numrange generator (the eid is no more a sequence)
Bump format version to 1.1.
Related to #4870338
option_group_changed('port', 'main', 'web')
option_group_changed('query-log-file', 'main', 'web')
option_group_changed('profile', 'main', 'web')
option_group_changed('max-post-length', 'main', 'web')