nomiddlename/log4js-node — pull request #217 by 2ion (2014-07-11 02:09:59+00:00)
Title: Gelf spec v1.1 compliance

According to the GELF spec v1.1,

* the facility field is deprecated and should be sent as a custom field instead. This patch moves any facility field into customFields, but doesn't specify a default value anymore.
* the version field must be set to 1.1.