Django-peeringdb

Added
- `suite` and ``floor` fields to `AddressModel`
- better tooltip/help text for phone fields

Added
- "Government" network type
- "Network Services" network type
- "Route Collector" network type
- django3.1 tests
Changed
- improve network.info_prefixes4 help text
- improve network.info_prefixes6 help text
Removed
- django1.11 support (end of life Apr 2020)
- django2.0 support (end of life Apr 2019)
- django2.1 support (end of life Dec 2019)
- python3.5 support (end of life Sep 2020)

Added
- django3.0 support

Added
- add `ixf_last_import` to InternetExchangeBase (peeringdb/peeringdb683)
- add `ixf_net_count` to InternetExchangeBase (peeringdb/peeringdb683)
- add `ixf_ixp_member_list_url` to IXLanBase (peeringdb/peeringdb249)
- add `ixf_ixp_member_list_url_visible` to IXLanBase (peeringdb/peeringdb249)
Fixed
- fix issue in setup.py for test requirements

Fixed
- remove verbose_name migrations (45)

Added
- add `in_dfz` field to IXLanPrefixBase (peeringdb/peeringdb352)
Changed
- Make spelling of traffic levels consistent (peeringdb/peeringdb519)