Update cell-numeric-superscript.csl (#4384)

This update removes URLs from all non-webpage references, "Available at:" from all other URLs, access dates for all URLs, and publisher locations in accordance with Cell Press style.

Author: emblanchard

cell-numeric-superscript.csl

@@ -15,7 +15,7 @@
     <category citation-format="numeric"/>
     <category field="biology"/>
     <summary>The style for Cell Journals using numerical citations in superscript, such as Chem</summary>
-    <updated>2016-07-28T09:56:00+00:00</updated>
+    <updated>2019-10-29T19:17:19+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
   <macro name="editor">
@@ -27,7 +27,6 @@
   <macro name="author">
     <names variable="author">
       <name name-as-sort-order="all" and="text" sort-separator=", " initialize-with="." delimiter=", " delimiter-precedes-last="always"/>
-      <et-al font-style="italic"/>
       <label form="short" prefix=" "/>
       <substitute>
         <names variable="editor"/>
@@ -38,27 +37,19 @@
   <macro name="access">
     <choose>
       <if variable="URL">
-        <text value="Available at:" suffix=" "/>
-        <text variable="URL"/>
-        <group prefix=" [" suffix="]">
-          <text term="accessed" text-case="capitalize-first" suffix=" "/>
-          <date variable="accessed">
-            <date-part name="month" suffix=" "/>
-            <date-part name="day" suffix=", "/>
-            <date-part name="year"/>
-          </date>
-        </group>
+        <choose>
+          <if type="webpage dataset entry-dictionary entry-encyclopedia post post-weblog" match="any">
+            <text variable="URL"/>
+          </if>
+        </choose>
       </if>
     </choose>
   </macro>
   <macro name="title">
     <text variable="title"/>
   </macro>
   <macro name="publisher">
-    <group prefix="(" delimiter=": " suffix=")">
-      <text variable="publisher-place"/>
-      <text variable="publisher"/>
-    </group>
+    <text variable="publisher" prefix="(" suffix=")"/>
   </macro>
   <macro name="edition">
     <choose>