Add datetime_utility.js.coffee

app/assets/javascripts/lib/datetime_utility.js.coffee

+((w) ->
+
+  w.gl ?= {}
+  w.gl.utils ?= {}
+
+  w.gl.utils.formatDate = (datetime) ->
+    dateFormat(datetime, 'mmm d, yyyy h:MMtt Z')
+
+  w.gl.utils.updateFormatDate = ($timeagoEls) ->
+    $timeagoEls.each( ->
+          $el = $(@)
+          $el.attr('title', gl.utils.formatDate($el.attr('datetime')))
+    )
+
+) window