0.7.2

Small bugfixes and convenience methods on JsonValue:

Method	Description
is_empty	Returns true if the value null, false, 0, [], {}, or "".
clear	Clears the content of a string, array or object, noop otherwise.
pop	Remove and return last element of an array, null if not an array or empty.
remove	Remove a value from an object by key and return that element or null.

All details available in the documentation.