Update springer-lecture-notes-in-computer-science.csl to include accessed dates (#4320)

via https://forums.zotero.org/discussion/comment/324684#Comment_324684

Author: POBrien333

springer-lecture-notes-in-computer-science-alphabetical.csl

@@ -20,9 +20,14 @@
     </contributor>
     <category citation-format="numeric"/>
     <category field="engineering"/>
-    <updated>2012-09-27T22:06:38+00:00</updated>
+    <updated>2019-09-25T13:54:37+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>
+  <locale xml:lang="en">
+    <terms>
+      <term name="accessed">last accessed</term>
+    </terms>
+  </locale>
   <macro name="author">
     <group>
       <names variable="author">
@@ -135,10 +140,18 @@
             </date>
           </group>
         </else-if>
-        <else-if type="webpage">
+        <else-if type="webpage post-weblog post" match="any">
           <group delimiter=", ">
             <text macro="title"/>
             <text variable="URL"/>
+            <group delimiter=" ">
+              <text term="accessed"/>
+              <date variable="accessed">
+                <date-part name="year"/>
+                <date-part name="month" form="numeric-leading-zeros" prefix="/"/>
+                <date-part name="day" form="numeric-leading-zeros" prefix="/"/>
+              </date>
+            </group>
           </group>
         </else-if>
         <else-if type="speech">

springer-lecture-notes-in-computer-science.csl

@@ -15,10 +15,14 @@
     </contributor>
     <category citation-format="numeric"/>
     <category field="engineering"/>
-    <updated>2012-09-27T22:06:38+00:00</updated>
+    <updated>2019-09-25T13:54:37+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="author">
+  <locale xml:lang="en">
+    <terms>
+      <term name="accessed">last accessed</term>
+    </terms>
+  </locale><macro name="author">
     <group>
       <names variable="author">
         <name name-as-sort-order="all" sort-separator=", " initialize-with="." delimiter=", " delimiter-precedes-last="always"/>
@@ -116,10 +120,18 @@
             </date>
           </group>
         </else-if>
-        <else-if type="webpage">
+        <else-if type="webpage post-weblog post" match="any">
           <group delimiter=", ">
             <text macro="title"/>
             <text variable="URL"/>
+            <group delimiter=" ">
+              <text term="accessed"/>
+              <date variable="accessed">
+                <date-part name="year"/>
+                <date-part name="month" form="numeric-leading-zeros" prefix="/"/>
+                <date-part name="day" form="numeric-leading-zeros" prefix="/"/>
+              </date>
+            </group>
           </group>
         </else-if>
         <else-if type="speech">