No "resource-url-analytics" class on the recline fail "download resource" button

This is causing events to be not logged on that download button. This will fix: https://github.com/okfn/ckanext-googleanalytics/issues/4

See: http://sa.staging.ckanhosted.com/dataset/sa-memory2/resource/116091f1-3064-48c4-b642-815b9d4b2ea0# for example