Add libssl-dev and libyaml-dev to dependencies
Merge branch 'master' of github.com:TheTorProject/ooni-sysadmin

* 'master' of github.com:TheTorProject/ooni-sysadmin:
  Add Wide-open CORS config for nginx
  provide mongodb dependency
  Fix CMD argument was missing
  Initial commit data pipeline state 4 (web server)
  Teach import-docker to use new ooni pipline cli
  Refactor ooni pipeline usage
  Teach sanitizer docker to use env variables instead of commandline args
  Add a Dockerfile for importer task
  Clean up start wrapper script for sanitizer docker image
  Add POC sanitizer docker script
  Fix minor typo bugs and mount host volumes into docker image
  rough draft docker attempt to start aggregator pipeline
Fix setting of input if absent