Use brew test command for displaying OMERO/Bio-Formats versions
Add OMERO.web config/startup using nginx to the Homebrew script
Fix directory type and stop nginx
Fix OMERO.web stop, add config and stop server
Add simple test for Web connection
Test Web connection using wget
Install nginx as part of the OMERO formula
Allow to set HTTP port by environment  variable

Although the script seems to run fine locally, it appears to conflict in a
Jenkins environment which is also using port 8080. This allows to control the
HTTP port for OMERO.web testing.
Fix variable substitution
Fix typo
Fix (yet another time) the Homebrew installation one-liner
Merge pull request #3058 from sbesson/rebased/develop/homebrew_nginx

Homebrew nginx (rebased onto develop)