Test added for group query
Test added for MoreLikeThis query
Test added for facet-query
merging in the prepared tests from juzerali + applying the new configurable test settings
making the facet-test pass --> by picking a facet field (author) that exists in the schema and adding the extra returned data to compare
making the mlt test work --> by just adding the fields to the expected return
remove logging statement
making the group test work --> by changing our expectations about the outcome
better no logging, and surely not before the sassert.ok
Add support for deep-paging through cursorMarks as suggested in #89
adding tests for common features in order to fulfill the suggestions in #39