remove json-c
Squashed 'vendor/jansson/' content from commit 34a64cf

git-subtree-dir: vendor/jansson
git-subtree-split: 34a64cfe53f19d52caab913149a0ac65ee26dea5
Merge commit '10bd19ab9bf182853e707ed76386f1462fc93be1' as 'vendor/jansson'
User jansson instead of json-c

Fails to update or create because an error with the http server