* First pass based on existing PR, what is currently on master and some
extra tests.
* Try to resolve AWS service documentation
* Add documentation on how to opt-out of AAAA record creation
* Address documentation concerns
* Add some IPv6 tests to sources
* Make recommended changes to documentation
If a single change fails during the retry, it will be added to a queue.
In the next iteration, changes from this queue will be submitted after
all other changes.
When submitting single changes, they are always submitted as batches of
changes with the same DNS name and ownership relation to avoid
inconsistency between the record created and the TXT records.
* Make suitableType() be Endpoint method
With this change it becomes possible to work with endpoint
of empty type in packages other than "provider". Also
it seems logical for a smart property getter without side effects
to be a method rather than a function in different package
* Make plan computation work correctly with multi-target domains
* fix drawing
* drop comments
* fix boilerplate header
* fix comment
* fix the bug with empty map
* rework registry to support random lables
* serialize->serializeLabel function rename
* golint for err variable naming
* add additional test
* add tests for current case where one resource can generate multiple endpoints
* make labels have its own type, add serialization as a method
* add comment for exported error
* use greater rather than not equal zero
* update changelog
