+ statsd: add the include-hostname setting to the default key generator

 * This commit adds 'include-hostname' the default key generator setting
   in statsd. When set to false, the generated keys wont include host
   information. They will have the following scheme:

   application.entity.entity-name.metric-name
Merge pull request #75 from myfitnesspal/master

Add report-hostname to statsd settings.