Upgrade SonarQube to 5.6.2

[SachinKSingh28]

• SonarQube upgraded to 5.6.2
• Added environment variables to enable JMX with or without authentication,
• Pointed access logs to stdout.

[SachinKSingh28]

This also needs a change to the adop-nginx proxy rules.

When deploying sonar 5.6.2 behind adop-nginx, the top navigation bar is not loading. Sonar tries to run few java scripts (example below) when loading the navigation bar -

http:///sonar/js/bundles/vendor.js?v=5.6.2

This is failing because of the regexps in proxy. Specifically -

location ~* /bundles/.* { proxy_pass http://kibana:5601; }
I'll create another PR for adop-nginx to fix this issue.

[nickdgriffin]

LGTM.

When this release is taken into adop-docker-compose it'll need to be alongside the Nginx change please.

[deors]

I have made some updates to #10 which relates to this issue. I think we should bump to 5.6.3 now we are in the process. I have also included the list of compatible plugins/versions we have battle tested so far. Most notably JMeter plugin is no longer binary-compatible with SQ API and must be removed until it is either upgraded (or we fork it, which is something we are considering to do).