GUACAMOLE-471: Update copyright year in footer to 2018.
diff --git a/_includes/footer.html b/_includes/footer.html
index 6afcdeb..a1a116e 100644
--- a/_includes/footer.html
+++ b/_includes/footer.html
@@ -3,7 +3,7 @@
 
     <!-- Copyrights -->
     <p class="copyright">
-        Copyright &copy; 2017 <a href="http://www.apache.org/">The Apache
+        Copyright &copy; 2018 <a href="http://www.apache.org/">The Apache
             Software Foundation</a>, Licensed under the <a
         href="http://www.apache.org/licenses/LICENSE-2.0">Apache License,
         Version 2.0</a>. The HTML5 shield logo has been modified from the