JSON parser BUGFIX parsing data after top-level list instance
JSON parser BUGFIX parsing data after top-level list instance

when parsing top-level list, wrong assignment of return value caused
to drop all the data except the first element.

Fixes #264

PavolVican/libyang,PavolVican/libyang,PavolVican/libyang,PavolVican/libyang,PavolVican/libyang