added unit test for engine generated rss feeds
added unit test for engine generated rss feeds

fmin2958/angular-xml,gregpardo/angular-xml,johngeorgewright/angular-xml,johngeorgewright/angular-xml,gregpardo/angular-xml,johngeorgewright/angular-xml,fmin2958/angular-xml,gregpardo/angular-xml,fmin2958/angular-xml