Merge pull request #19 from pihizi/master

JSON SysLog
use sonarqube for code analysis
add sonar-runner in .drone.yml
change Config variable from $(XX) to ${XX}
remove travis.yml
remove emoji.. since sonarqube doesn't support it..
Fix Index User/Password Promption, and run php-cs-fixer...
Bumped version to 0.6.1