Small fast followers to 'checksimul' feature
* remove redundant free
* use actual null values instead of empty strings for start/stop timestamp
* allow user specification of the view query key with xlat
* add pre and post verification session count debugging
* update example strip policy to new reference style
* adjust documentation as needed
Merge pull request #841 from leprechau/onemorething

Small fast followers to 'checksimul' feature