Address comments for RAVEN circular; Fixes #55 #56

(cherry picked from commit 0fb2faec)

ligo/followup_advocate/templates/initial_body.jinja2

@@ -9,8 +9,8 @@ The candidate was found by the {{naturalotherpipelines(pipeline, other_pipelines
 analysis pipeline{% if ([pipeline] + other_pipelines)|length > 1 %}s{% endif %}.
 
 {% if change_significance_statement %}
-This gravitational wave candidate is not significant enough on its own to produce a public alert
-but its coincidence with the {% if snews %}SNEWS neutrino{% endif %}{% if grb %}GRB{% endif %} trigger increases its significance.
+Based on the analysis of gravitational-wave data alone, this candidate does not meet our criteria for a public alert.
+However, a search performed by the RAVEN pipeline found a significant coincidence between this candidate and {{external_trigger}}.
 {% else %}
 {{gracedb_id}} is an event of interest because its false alarm rate, as
 estimated by the online analysis, is {{naturalfar(far)}}.

ligo/followup_advocate/test/data/S5678/files.json

@@ -13,5 +13,6 @@
     "LALInference.fits.gz,0": "https://gracedb-dev1.ligo.org/api/events/S5678/files/LALInference.fits.gz,0",
     "S5678-1-Initial.xml": "https://gracedb-dev1.ligo.org/api/events/S5678/files/S5678-1-Initial.xml",
     "S5678-2-Update.xml": "https://gracedb-dev1.ligo.org/api/events/S5678/files/S5678-2-Update.xml",
-    "coincidence_far.json": "https://gracedb-dev1.ligo.org/api/events/S5678/files/coincidence_far.json"
+    "coincidence_far.json": "https://gracedb-dev1.ligo.org/api/events/S5678/files/coincidence_far.json",
+    "bayestar-gbm.fits.gz": "https://gracedb-dev1.ligo.org/api/events/S1234/files/bayestar-gbm.fits.gz"
 }

ligo/followup_advocate/test/data/S5678/logs.json

@@ -144,6 +144,18 @@
             "tags": "https://gracedb-dev1.ligo.org/api/events/S5678/log/11/tag/",
             "N": 11
         },
+        {
+            "comment": "Combined LVC-Fermi sky map using bayestar.fits.gz",
+            "file_version": 0,
+            "tag_names": ["sky_loc", "public"],
+            "file": "https://gracedb-dev1.ligo.org/api/events/S1234/files/bayestar-gbm.fits.gz,0",
+            "created": "2018-06-28 04:08:44 UTC",
+            "self": "https://gracedb-dev1.ligo.org/api/events/S1234/log/13",
+            "issuer": "leo.singer@LIGO.ORG",
+            "filename": "bayestar-gbm.fits.gz",
+            "tags": "https://gracedb-dev1.ligo.org/api/events/S1234/log/13/tag/",
+            "N": 13
+        },
         {
             "comment": "Tagged message 10: lvem ",
             "file_version": null,