Fix datetime picker translations on Order cycles screen

So the thing is we initialize jQuery plugin on `admin/util.js.erb` but
then we override those defaults on order_cycles.js.erb.coffe. Now both
plugin initializations use the same defaults. Also added 3 missing
translations for `Done`, `Now` and `Time` copies on that timepicker popover

app/assets/javascripts/admin/order_cycles/order_cycles.js.erb.coffee

@@ -9,22 +9,19 @@ angular.module('admin.orderCycles', ['ngTagsInput', 'admin.indexUtils', 'admin.e
       $timeout ->
         # using $parse instead of scope[attrs.datetimepicker] for cases
         # where attrs.datetimepicker is 'foo.bar.lol'
-        $(element).datetimepicker
-          dateFormat: 'yy-mm-dd'
-          timeFormat: 'HH:mm'
-          showOn: 'button'
-          controlType: 'select'
-          oneLine: true
-          buttonImage: "<%= asset_path 'datepicker/cal.gif' %>"
-          buttonImageOnly: true
-          stepMinute: 15
-          onSelect: (dateText, inst) ->
-            scope.$apply(->
-              element.val(dateText)
-              parsed = $parse(attrs.datetimepicker)
-              parsed.assign(scope, dateText)
-            )
-
+        $(element).datetimepicker(
+          Object.assign(
+            window.JQUERY_UI_DATETIME_PICKER_DEFAULTS,
+            {
+              onSelect: (dateText, inst) ->
+                scope.$apply(->
+                  element.val(dateText)
+                  parsed = $parse(attrs.datetimepicker)
+                  parsed.assign(scope, dateText)
+                )
+            }
+          )
+        )
 
   .directive 'ofnOnChange', ->
     (scope, element, attrs) ->

app/assets/javascripts/admin/util.js.erb

@@ -1,22 +1,30 @@
-$(document).ready(function() {
-  $('.datetimepicker').datetimepicker({
-    dateFormat: 'yy-mm-dd',
-    timeFormat: 'HH:mm',
+$(document).ready(function(){
+  window.JQUERY_UI_DATE_PICKER_DEFAULTS = {
+    dateFormat: Spree.translations.date_picker,
     dayNames: Spree.translations.abbr_day_names,
     dayNamesMin: Spree.translations.abbr_day_names,
     monthNames: Spree.translations.month_names,
     prevText: Spree.translations.previous,
     nextText: Spree.translations.next,
-    showOn: 'button',
-    controlType: 'select',
     oneLine: true,
+    showOn: 'button',
     buttonImage: "<%= asset_path 'datepicker/cal.gif' %>",
-    buttonImageOnly: true,
-    stepMinute: 15
-  });
-});
+    buttonImageOnly: true
+  }
 
-$(document).ready(function(){
+  window.JQUERY_UI_DATETIME_PICKER_DEFAULTS = Object.assign(
+    {},
+    window.JQUERY_UI_DATE_PICKER_DEFAULTS,
+    {
+      currentText: Spree.translations.datetime_ui_current_text,
+      closeText: Spree.translations.datetime_ui_close_text,
+      timeText: Spree.translations.datetime_ui_time_text,
+      timeFormat: 'HH:mm',
+      controlType: 'select',
+      stepMinute: 15
+    }
+  );
+  $('.datetimepicker').datetimepicker(window.JQUERY_UI_DATETIME_PICKER_DEFAULTS);
   $('a.close').click(function(event){
     event.preventDefault();
     $(this).parent().slideUp(250);

app/views/spree/admin/shared/_translations.html.erb

@@ -15,6 +15,9 @@
     :loading                  => Spree.t(:loading),
     :month_names              => I18n.t(:month_names, :scope => :date).reject(&:blank?),
     :more                     => Spree.t(:more),
+    :datetime_ui_current_text => I18n.t('datetime_picker_ui.current_text'),
+    :datetime_ui_close_text   => I18n.t('datetime_picker_ui.close_text'),
+    :datetime_ui_time_text    => I18n.t('datetime_picker_ui.time_text'),
     :name                     => Spree.t(:name),
     :next                     => Spree.t(:next),
     :no_results               => Spree.t(:no_results),

config/locales/en.yml

@@ -145,6 +145,10 @@ en:
       not_array_error: "must be an array"
       invalid_element_error: "must contain only valid integers"
 
+  datetime_picker_ui:
+    current_text: Now
+    close_text: Done
+    time_text: Time
   enterprise_mailer:
     confirmation_instructions:
       subject: "Please confirm the email address for %{enterprise}"