[Test] Added basic test for Parameters.toUrl
[Fix] Added a granularity parameter to Parameters. Different granularity
DAY can now be used in the request
[Fix] Added granularity parameter to ListRecordsParameters and
ListIdentifiersParameters. Parameters retrieves this value in the
corresponding include() methods
[Test] Added missing test in previous commit
Merge branch 'master' of https://github.com/lyncode/xoai into fix27
Merge pull request #29 from mmalmeida/fix27

Fix27