in src/main/scala/com.gu.conf/GuardianConfigurationStrategy.scala [89:96]
def getDeveloperCommonProperties(webappConfDirectory: String) = {
val location = "classpath:%s/global.properties" format webappConfDirectory
log("Loading developer common properties from " + location)
val properties = loader getPropertiesFrom location
new PropertiesBasedConfiguration(location, properties)
}