Switch ordering of pipelines to alphabetical; fixes #80

ligo/followup_advocate/templates/initial_body.jinja2

 {% from 'macros.jinja2' import oxford_commas, evidence_for, probability,
                             naturalinstruments, naturalfar,
-                            naturalclassifications, naturalotherpipelines,
+                            naturalclassifications, naturalpipelines,
                             naturalearlywarningpipelines,
                             renamegroup, citeskymap %}
 {% filter rewrap %}
 We identified the {{renamegroup(group)}} candidate {{gracedb_id}} during real-time processing of data from
 {{naturalinstruments(instruments, )}} at {{utctime}} UTC (GPS time: {{gpstime}}).
-The candidate was found by the {{naturalotherpipelines(pipeline, other_pipelines, citation_index)}}
-analysis pipeline{% if ([pipeline] + other_pipelines)|length > 1 %}s{% endif %}.
+The candidate was found by the {{naturalpipelines(all_pipelines, citation_index)}}
+analysis pipeline{% if all_pipelines|length > 1 %}s{% endif %}.
 {% if early_warning_alert and early_warning_pipelines %}
 An early-warning alert was issued for this candidate, with {% if early_warning_pipelines|length > 1 %}detections{% else %} a detection{% endif %} from the {{naturalearlywarningpipelines(early_warning_pipelines, citation_index)}} early-warning pipeline{% if early_warning_pipelines|length > 1 %}s{% endif %}.
 {% endif %}