Fixed problem with Request Json array

Fixed application type for browsers that also send character encoding,
and now send the JSON data through the Collection system.
Fixed problem with Request Json array

Fixed content type for browsers that also send character encoding, and
now send the JSON data through the Collection system.
Fixed code to work when body is empty

Now passes empty JSON data through the collection system to remove
errors about unknown keys when posting via other methods
Merge pull request #121 from cuonic/master

Fixed problem with Request Json array