rename all migrations to 1.x

db/migrations/1.11_lock_rulez.php

db/migrations/1.120_create_open_graph_data_table.php

db/migrations/1.121_step_00266_forced_lock_rules.php

db/migrations/1.122_add_seminar_id_to_folder.php

db/migrations/1.123_tic_3993_remove_dont_delete.php

db/migrations/1.124_step_00255_important_semnumber.php

db/migrations/1.125_repair_statusgroup_user_numberation.php

db/migrations/1.126_tic_4044_invisible_studygroups.php

db/migrations/1.127_setup_api.php

db/migrations/1.128_step00240_coursesets.php

db/migrations/1.129_wysiwyg_config_option.php

db/migrations/1.12_step_120_userpic.php

db/migrations/1.130_step_00267_preliminary_accounts.php

db/migrations/1.131_score_config_option.php

db/migrations/1.132_step_00268_event_log.php

db/migrations/1.133_tic_4072_new_password_hashing.php

db/migrations/1.134_step_00269_plugin_roles.php

db/migrations/1.135_tic_4011_remove_teilnehmer_view.php

db/migrations/1.136_wiki_remove_camel_case.php

db/migrations/1.137_studygroup_invitations.php