* moved qualysapi to branch master-update
* fixing bug of qualys scan without vulnerabilities: vulnWhispererQualysVuln[1361] ERROR Could not process scan/1549159480.84792: 'severity'
* change to fixed qualysapi branch
* fix bug and changed to qualysapi fork master branch
* updated submodule to master branch
* ignore nessus requests warnings
* docker-compose fully working with vulnwhisperer integrated
* remove comments docker-compose
* documenting docker-compose
* Readme corrections
* fix after recheck everything works out of the box
* fix exits that break the no specified section execution mode
* fix docker qualysapi issue, updated README
* revert change on deps/qualysapi/qualysapi/util.py (no effect)
* temporarily changed Dockerfile link to the working one