fix multi-course emails and update ACE

openedx/core/djangoapps/schedules/templates/schedules/edx_ace/recurringnudge_day10/email/body.html

@@ -2,7 +2,7 @@
 {% load i18n %}
 
 {% block preview_text %}
-    {% if courses|length > 1 %}
+    {% if course_ids|length > 1 %}
         {% blocktrans trimmed %}
             Many {{ platform_name }} learners are completing more problems every week, and
             participating in the discussion forums. What do you want to do to keep learning?
@@ -22,7 +22,7 @@
             <h1>{% trans "Keep up the momentum!" %}</h1>
 
             <p>
-                {% if courses|length > 1 %}
+                {% if course_ids|length > 1 %}
                     {% blocktrans trimmed %}
                         Many edX learners are completing more problems every week, and
                         participating in the discussion forums. What do you want to do to keep learning?
@@ -37,7 +37,7 @@
             <p>
                 <!-- email client support for style sheets is pretty spotty, so we have to inline all of these styles -->
                 <a
-                {% if courses|length > 1 %}
+                {% if course_ids|length > 1 %}
                     href="{{ dashboard_url }}"
                 {% else %}
                     href="{{ course_url }}"

openedx/core/djangoapps/schedules/templates/schedules/edx_ace/recurringnudge_day10/email/body.txt

 {% load i18n %}
-{% if courses|length > 1 %}
+{% if course_ids|length > 1 %}
     {% blocktrans trimmed %}
         Many edX learners are completing more problems every week, and
         participating in the discussion forums. What do you want to do to keep learning?

openedx/core/djangoapps/schedules/templates/schedules/edx_ace/recurringnudge_day10/email/from_name.txt

-{% if courses|length > 1 %}
+{% if course_ids|length > 1 %}
 {{ platform_name }}
 {% else %}
 {{ course_name }}

openedx/core/djangoapps/schedules/templates/schedules/edx_ace/recurringnudge_day3/email/body.html

@@ -2,7 +2,7 @@
 {% load i18n %}
 
 {% block preview_text %}
-    {% if courses|length > 1 %}
+    {% if course_ids|length > 1 %}
         {% blocktrans trimmed %}
             Remember when you enrolled in {{ course_name }}, and other courses on edX.org? We do, and we’re glad
             to have you! Come see what everyone is learning.
@@ -22,7 +22,7 @@
             <h1>{% trans "Keep learning today" %}.</h1>
 
             <p>
-                {% if courses|length > 1 %}
+                {% if course_ids|length > 1 %}
                     {% blocktrans trimmed %}
                         Remember when you enrolled in <strong>{{ course_name }}</strong>, and other courses on edX.org? We do, and we’re glad
                         to have you! Come see what everyone is learning.
@@ -38,7 +38,7 @@
             <p>
                 <!-- email client support for style sheets is pretty spotty, so we have to inline all of these styles -->
                 <a
-                {% if courses|length > 1 %}
+                {% if course_ids|length > 1 %}
                     href="{{ dashboard_url }}"
                 {% else %}
                     href="{{ course_url }}"

openedx/core/djangoapps/schedules/templates/schedules/edx_ace/recurringnudge_day3/email/body.txt

 {% load i18n %}
 
-{% if courses|length > 1 %}
+{% if course_ids|length > 1 %}
 {% blocktrans trimmed %}
     Remember when you enrolled in {{ course_name }}, and other courses on edX.org? We do, and we’re glad
     to have you! Come see what everyone is learning.

openedx/core/djangoapps/schedules/templates/schedules/edx_ace/recurringnudge_day3/email/from_name.txt

-{% if courses|length > 1 %}
+{% if course_ids|length > 1 %}
 {{ platform_name }}
 {% else %}
 {{ course_name }}

openedx/core/djangoapps/schedules/templates/schedules/edx_ace/recurringnudge_day3/email/subject.txt

 {% load i18n %}
-{% if courses|length > 1 %}
+{% if course_ids|length > 1 %}
 {% blocktrans %}Keep learning on {{ platform_name }}{% endblocktrans %}
 {% else %}
 {% blocktrans %}Keep learning in {{course_name}}{% endblocktrans %}

requirements/edx/base.txt

@@ -38,7 +38,7 @@ django==1.8.18
 django-waffle==0.12.0
 djangorestframework-jwt==1.11.0
 enum34==1.1.6
-edx-ace==0.1.4
+edx-ace==0.1.5
 edx-ccx-keys==0.2.1
 edx-celeryutils==0.2.6
 edx-drf-extensions==1.2.3