Do Not Write Blank Objects and Fields (See Details)

[SenorPez]

The Configuration Editor currently writes blank objects and null fields into the configuration. This just clutters the configuration.

For example:
"car_classes" : { },
"series_logo" : null,

However, one thing that should be retained is the writing of empty string values for fields. For example:
"subheading_text" : "",

The reason for this is that the end-user has no distinction between "blank" and "null."