Added a setting to always include an empty option in option values
Renamed variables from emptyOption to emptyItem
Added tests
Merge pull request #328 from n3ziniuka5/master

Added a setting to always include an empty option in option values
fix to add datetimetz to the type conversion
Merge pull request #335 from freemanirl/fix-hydrate-datetimetz

fix to add datetimetz to the type conversion