from travis ci: custom dtd, as documented in issue #41

Author: openmath-travis

standard/om20-editors-draft/omstd20-diff.html

@@ -159,7 +159,7 @@ <h1>The <i>OpenMath</i> Standard
 
 
          <div class="mdata" style="font-size:110%;background-color:#EEE;padding:.5em;">
-            <b>Editors' Draft:</b> Built 2017-10-02<br />
+            <b>Editors' Draft:</b> Built 2017-10-03<br />
             Source Repository: <a href="https://github.com/OpenMath/OMSTD/">https://github.com/OpenMath/OMSTD</a><br />
             This Version: <a href="https://openmath.github.io/standard/om20-editors-draft/">https://openmath.github.io/standard/om20-editors-draft</a><br />
             Normative version: <a href="https://openmath.github.io/standard/om20-2004-06-30/">https://openmath.github.io/standard/om20-2004-06-30</a>

standard/om20-editors-draft/omstd20-diff.pdf

@@ -159,7 +159,7 @@ <h1>The <i>OpenMath</i> Standard
 
 
          <div class="mdata" style="font-size:110%;background-color:#EEE;padding:.5em;">
-            <b>Editors' Draft:</b> Built 2017-10-02<br />
+            <b>Editors' Draft:</b> Built 2017-10-03<br />
             Source Repository: <a href="https://github.com/OpenMath/OMSTD/">https://github.com/OpenMath/OMSTD</a><br />
             This Version: <a href="https://openmath.github.io/standard/om20-editors-draft/">https://openmath.github.io/standard/om20-editors-draft</a><br />
             Normative version: <a href="https://openmath.github.io/standard/om20-2004-06-30/">https://openmath.github.io/standard/om20-2004-06-30</a>