Python-hostingde

Feature
* Adds None as possible chainable target ([20](https://github.com/cancom/python-hostingde/issues/20)) ([`daf077b`](https://github.com/cancom/python-hostingde/commit/daf077b0cd9e470797dce63938686b3a090265a7))
* Adds ability to paginate using the pages API which was originally hidden to the user ([`318d75c`](https://github.com/cancom/python-hostingde/commit/318d75c9064e83f1bc6e473f5938e5942a0c23c5))

Feature
* Adds check_domain_availability endpoint ([17](https://github.com/cancom/python-hostingde/issues/17)) ([`76b63cd`](https://github.com/cancom/python-hostingde/commit/76b63cd2fb8153e9eaaf20cc3b215bfeb28858fa))

Fix
* Fixes issue where wrong model is retrieved from backend ([18](https://github.com/cancom/python-hostingde/issues/18)) ([`7e5fbbe`](https://github.com/cancom/python-hostingde/commit/7e5fbbe589c8b000e740558aa82402d4bcefbbfe))

Feature
* Adds domain endpoints ([16](https://github.com/cancom/python-hostingde/issues/16)) ([`afb488b`](https://github.com/cancom/python-hostingde/commit/afb488b076e9c6bb8710e95045aee96d9f641738))

Documentation
* Installation instruction and badges ([14](https://github.com/cancom/python-hostingde/issues/14)) ([`575741c`](https://github.com/cancom/python-hostingde/commit/575741c559387478383aa1fa04a0db973ee55fb7))

Fix
* Paginator.fetchone() now returns None instead of a ClientException at the end of the iteration ([13](https://github.com/cancom/python-hostingde/issues/13)) ([`dc94eee`](https://github.com/cancom/python-hostingde/commit/dc94eee54e765682f87ac631d7ae787253dab19a))

Fix
* Renames zone_id to zone_config_id in Record model ([11](https://github.com/cancom/python-hostingde/issues/11)) ([`45f4678`](https://github.com/cancom/python-hostingde/commit/45f46781b3070041252cc420552140181f08e784))

Feature
* Adds support for record comments ([10](https://github.com/cancom/python-hostingde/issues/10)) ([`1dc5eaa`](https://github.com/cancom/python-hostingde/commit/1dc5eaa73b387760c90396b63e187e3f54f880cf))