0.0.23: Remove malformed (#52)
* Removed the malformed property as a default so the date fields can get indexed * Fixed unit test * Modified input string to use strict_date_optional_time instead of the manually formatted Z string. This ES ISO parser accepts it and allows for some more flexibility (date present with no time) around our input stamps without blowing up. Co-authored-by: Jason Krohn <[email protected]>