[FYI] json and Jackson update

[Jacques Le Roux]

Hi,

After the recent discussions on several ASF MLs about the json license issue https://en.wikipedia.org/wiki/Douglas_Crockford#.22Good.2C_not_Evil.22

and the move of this license to the X category http://www.apache.org/legal/resolved.html#json

I checked we don't use the json jar but jackson which is safe

I then tried to update jackson, and before creating a Jira issue for that, I tried to change

'org.zapodot:jackson-databind-java-optional:2.4.2'

to

'org.zapodot:jackson-databind-java-optional:2.8.4'

Which is claimed to be the last stable release but it's not in jcenter (maybe in Maven). I gave up at this stage, we have anyway no know issues using
2.4.2

Jacques