add tests for content update method with objects containing null, string, and boolean values
add test for content update method with object containing another object
add test for content update method with object containing a number value
add test for checking insertion for objects with a null value
add handling of null values in date conversion
remove console.log from content insert test
Merge pull request #62 from jjidt/master

handling of null values in date conversion,
thanks this is awesome, future merge requests should be on a develop branch or a feature branch off of develop to go along w our gitflow.... don't think we've made a develop branch in this repo yet