Merge "alembic: Fix downgrade and tweak for sqlite"

contrib/ast-db-manage/config/env.py

...nage/config/versions/10aedae86a32_add_outgoing_enum_va.py

...nage/config/versions/136885b81223_add_regcontext_to_pj.py

...age/config/versions/154177371065_add_default_from_user.py

...sions/15b1430ad6f1_add_moh_passthrough_option_to_pjsip.py

...ig/versions/1758e8bbf6b_increase_useragent_column_size.py

...e/config/versions/189a235b3fd7_add_keep_alive_interval.py

...manage/config/versions/1d50859ed02e_create_accountcode.py

...ge/config/versions/21e526ad3040_add_pjsip_debug_option.py

...manage/config/versions/23530d604b96_add_rpid_immediate.py

...ns/26d7f3bf0fa5_add_bind_rtp_to_media_address_to_pjsip.py

...config/versions/26f10cadc157_add_pjsip_timeout_options.py

...age/config/versions/28b8e71e541f_add_g726_non_standard.py

...nfig/versions/28ce1e718f05_add_fatal_response_interval.py

...fig/versions/2d078ec071b7_increaes_contact_column_size.py

...sions/2fc7930b41b3_add_pjsip_endpoint_options_for_12_1.py

...manage/config/versions/31cd4f4891ec_add_auto_dtmf_mode.py

.../config/versions/339a3bdf53fc_expand_accountcode_to_80.py

...ersions/371a3bf4143e_add_user_eq_phone_option_to_pjsip.py

...config/versions/3855ee4e5f85_add_missing_pjsip_options.py