Vagrant doc may need update for cloudant setup

[nwspeete-ibm]

Provide credentials for cloudant database with admin permissions

OW_DB=cloudant OW_DB_USERNAME=xxxxx OW_DB_PASSWORD=yyyyyy ./hello

https://github.com/openwhisk/openwhisk/blob/master/tools/vagrant/README.md

should cloudant be Cloudant here? @mdeuser @csantanapr

[rabbah]

@nwspeete-ibm yes. See https://github.com/openwhisk/openwhisk/blob/master/common/scala/src/main/scala/whisk/core/entity/WhiskStore.scala#L90.

[csantanapr]

There was something weird with how to read env variables in Vagrant that I had to use lower case cloudant and then exported as upper case Cloudant in Vagrant script

        if [[ $OW_DB == "cloudant" ]]; then
          export OW_DB="Cloudant"
          export OW_DB_PROTOCOL="https"
          export OW_DB_HOST="$OW_DB_USERNAME.cloudant.com"
          export OW_DB_PORT="443"
        else
          export OW_DB="CouchDB"
          export OW_DB_PROTOCOL=#{ENV['OW_DB_PROTOCOL']}
          export OW_DB_HOST=#{ENV['OW_DB_HOST']}
          export OW_DB_PORT=#{ENV['OW_DB_PORT']}
        fi

The docs are correct.