Check MongoDB server is available.
Merge pull request #4 from takahiro-inaba/wait-mongo

Check MongoDB server is available.
Correct exposed ports of Liberty containers
Publish exposed ports of HTTP server containers
Fixed building pwgen failure
Merge pull request #11 from takahiro-inaba/pwgen-fail

Fixed building pwgen failure - LGTM
Merge pull request #9 from takahiro-inaba/publish-ports

Publish exposed ports of HTTP server containers - LGTM
Merge pull request #8 from takahiro-inaba/liberty-ports

Correct exposed ports of Liberty containers - LGTM