jansson: Update to version 2.14.1

jansson: Update to version 2.14.1

- Update from version 2.14 to 2.14.1
- Update of rootfile
- Changelog
    2.14.1
	Fixes:
	  - Fix thread safety of encoding and decoding when `uselocale` or `newlocale`
	     is used to switch locales inside the threads (#674, #675, #677. Thanks to
	     Bruno Haible for the report and help with fixing.)
	  - Use David M. Gay's `dtoa()` algorithm to avoid misprinting issues of real
	     numbers that are not exactly representable as a `double` (#680).
	    If this is not desirable, use `./configure --disable-dtoa` or `cmake
	     -DUSE_DTOA=OFF .`
	Build:
	  - Make test output nicer in CMake based builds (#683)
	  - Simplify tests (#685)

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>