Update jesse_json_path.erl to kvc 1.5.0 to fix #33

In issue #33 was reported a bug in jesse_json_path.erl,
since jesse_json_path.erl is effectively a copy of kvc.erl
from https://github.com/etrepum/kvc, to fix the issue it's
enough to update it to the latest version of kvc.erl where
the issue was fixed.
Bump version