Log Message:
json2tsv: Update to 1.1

Changes:
1.1
---
Fixes:
* jaq: fail early if creating a temporary file using mktemp failed.
* micro-optimization for the json.c parser, json2tsv itself is unaffected though.
* Minor code-style and portability improvements.
* Typo fixes.

Features:
* json2tsv and jaq: add a -u option: flush output after printing each value
(unbuffered). This works similar to the sed -u option.
Sometimes it can be useful to force flushing the data directly. For example
for streaming JSON data.