Bugfixes: (1) Use 'NextToken' attribute in API call and (2) include the next token in the result so that it can be used in follow-up calls to list_domains/1 for situations where there are more than 100 domains.
Merge pull request #52 from cobusc/master

Bugfixes: (1) Use 'NextToken' attribute in API call and (2) include the ...