Use ASF mail archives not defunct nabble links

Nabble archive links appear to not work anymore. Use ASF pony mail links instead for archives.

Author: Sean Owen <srowen@gmail.com>

Closes #355 from srowen/Nabble.
diff --git a/community.md b/community.md
index e8f2cf7..ebc438a 100644
--- a/community.md
+++ b/community.md
@@ -24,8 +24,8 @@
   - Search StackOverflow's 
   <a href="https://stackoverflow.com/questions/tagged/apache-spark">`apache-spark`</a> tag to see if 
   your question has already been answered
-  - Search the nabble archive for
-  <a href="http://apache-spark-user-list.1001560.n3.nabble.com/">user@spark.apache.org</a> 
+  - Search the ASF archive for
+  <a href="https://lists.apache.org/list.html?user@spark.apache.org">user@spark.apache.org</a> 
 - Please follow the StackOverflow <a href="https://stackoverflow.com/help/how-to-ask">code of conduct</a>  
 - Always use the `apache-spark` tag when asking questions
 - Please also use a secondary tag to specify components so subject matter experts can more easily find them.
@@ -42,16 +42,16 @@
 
 <ul>
   <li>
-    <a href="http://apache-spark-user-list.1001560.n3.nabble.com">user@spark.apache.org</a> is for usage questions, help, and announcements.
+    <a href="https://lists.apache.org/list.html?user@spark.apache.org">user@spark.apache.org</a> is for usage questions, help, and announcements.
     <a href="mailto:user-subscribe@spark.apache.org?subject=(send%20this%20email%20to%20subscribe)">(subscribe)</a>
     <a href="mailto:user-unsubscribe@spark.apache.org?subject=(send%20this%20email%20to%20unsubscribe)">(unsubscribe)</a>
-    <a href="http://apache-spark-user-list.1001560.n3.nabble.com">(archives)</a>
+    <a href="https://lists.apache.org/list.html?user@spark.apache.org">(archives)</a>
   </li>
   <li>
-    <a href="http://apache-spark-developers-list.1001551.n3.nabble.com">dev@spark.apache.org</a> is for people who want to contribute code to Spark.
+    <a href="https://lists.apache.org/list.html?dev@spark.apache.org">dev@spark.apache.org</a> is for people who want to contribute code to Spark.
     <a href="mailto:dev-subscribe@spark.apache.org?subject=(send%20this%20email%20to%20subscribe)">(subscribe)</a>
     <a href="mailto:dev-unsubscribe@spark.apache.org?subject=(send%20this%20email%20to%20unsubscribe)">(unsubscribe)</a>
-    <a href="http://apache-spark-developers-list.1001551.n3.nabble.com">(archives)</a>
+    <a href="https://lists.apache.org/list.html?dev@spark.apache.org">(archives)</a>
   </li>
 </ul>
 
@@ -60,8 +60,8 @@
 - Prior to asking submitting questions, please:
   - Search StackOverflow at <a href="https://stackoverflow.com/questions/tagged/apache-spark">`apache-spark`</a> 
   to see if your question has already been answered
-  - Search the nabble archive for
-  <a href="http://apache-spark-user-list.1001560.n3.nabble.com/">user@spark.apache.org</a> 
+  - Search the ASF archive for
+  <a href="https://lists.apache.org/list.html?user@spark.apache.org">user@spark.apache.org</a> 
 - Tagging the subject line of your email will help you get a faster response, e.g. 
 `[Spark SQL]: Does Spark SQL support LEFT SEMI JOIN?`
 - Tags may help identify a topic by:
diff --git a/faq.md b/faq.md
index af57f26..0275c18 100644
--- a/faq.md
+++ b/faq.md
@@ -71,4 +71,4 @@
 
 <p class="question">Where can I get more help?</p>
 
-<p class="answer">Please post on StackOverflow's <a href="https://stackoverflow.com/questions/tagged/apache-spark"><code>apache-spark</code></a> tag or <a href="http://apache-spark-user-list.1001560.n3.nabble.com">Spark Users</a> mailing list.  For more information, please refer to <a href="https://spark.apache.org/community.html#have-questions">Have Questions?</a>.  We'll be glad to help!</p>
+<p class="answer">Please post on StackOverflow's <a href="https://stackoverflow.com/questions/tagged/apache-spark"><code>apache-spark</code></a> tag or <a href="https://lists.apache.org/list.html?user@spark.apache.org">Spark Users</a> mailing list.  For more information, please refer to <a href="https://spark.apache.org/community.html#have-questions">Have Questions?</a>.  We'll be glad to help!</p>
diff --git a/site/community.html b/site/community.html
index b779d37..f4e1fcf 100644
--- a/site/community.html
+++ b/site/community.html
@@ -219,8 +219,8 @@
       <li>Search StackOverflow&#8217;s 
 <a href="https://stackoverflow.com/questions/tagged/apache-spark"><code class="language-plaintext highlighter-rouge">apache-spark</code></a> tag to see if 
 your question has already been answered</li>
-      <li>Search the nabble archive for
-<a href="http://apache-spark-user-list.1001560.n3.nabble.com/">user@spark.apache.org</a></li>
+      <li>Search the ASF archive for
+<a href="https://lists.apache.org/list.html?user@spark.apache.org">user@spark.apache.org</a></li>
     </ul>
   </li>
   <li>Please follow the StackOverflow <a href="https://stackoverflow.com/help/how-to-ask">code of conduct</a></li>
@@ -240,16 +240,16 @@
 
 <ul>
   <li>
-    <a href="http://apache-spark-user-list.1001560.n3.nabble.com">user@spark.apache.org</a> is for usage questions, help, and announcements.
+    <a href="https://lists.apache.org/list.html?user@spark.apache.org">user@spark.apache.org</a> is for usage questions, help, and announcements.
     <a href="mailto:user-subscribe@spark.apache.org?subject=(send%20this%20email%20to%20subscribe)">(subscribe)</a>
     <a href="mailto:user-unsubscribe@spark.apache.org?subject=(send%20this%20email%20to%20unsubscribe)">(unsubscribe)</a>
-    <a href="http://apache-spark-user-list.1001560.n3.nabble.com">(archives)</a>
+    <a href="https://lists.apache.org/list.html?user@spark.apache.org">(archives)</a>
   </li>
   <li>
-    <a href="http://apache-spark-developers-list.1001551.n3.nabble.com">dev@spark.apache.org</a> is for people who want to contribute code to Spark.
+    <a href="https://lists.apache.org/list.html?dev@spark.apache.org">dev@spark.apache.org</a> is for people who want to contribute code to Spark.
     <a href="mailto:dev-subscribe@spark.apache.org?subject=(send%20this%20email%20to%20subscribe)">(subscribe)</a>
     <a href="mailto:dev-unsubscribe@spark.apache.org?subject=(send%20this%20email%20to%20unsubscribe)">(unsubscribe)</a>
-    <a href="http://apache-spark-developers-list.1001551.n3.nabble.com">(archives)</a>
+    <a href="https://lists.apache.org/list.html?dev@spark.apache.org">(archives)</a>
   </li>
 </ul>
 
@@ -260,8 +260,8 @@
     <ul>
       <li>Search StackOverflow at <a href="https://stackoverflow.com/questions/tagged/apache-spark"><code class="language-plaintext highlighter-rouge">apache-spark</code></a> 
 to see if your question has already been answered</li>
-      <li>Search the nabble archive for
-<a href="http://apache-spark-user-list.1001560.n3.nabble.com/">user@spark.apache.org</a></li>
+      <li>Search the ASF archive for
+<a href="https://lists.apache.org/list.html?user@spark.apache.org">user@spark.apache.org</a></li>
     </ul>
   </li>
   <li>Tagging the subject line of your email will help you get a faster response, e.g. 
diff --git a/site/faq.html b/site/faq.html
index 7814cfb..29dcbc3 100644
--- a/site/faq.html
+++ b/site/faq.html
@@ -264,7 +264,7 @@
 
 <p class="question">Where can I get more help?</p>
 
-<p class="answer">Please post on StackOverflow's <a href="https://stackoverflow.com/questions/tagged/apache-spark"><code>apache-spark</code></a> tag or <a href="http://apache-spark-user-list.1001560.n3.nabble.com">Spark Users</a> mailing list.  For more information, please refer to <a href="https://spark.apache.org/community.html#have-questions">Have Questions?</a>.  We'll be glad to help!</p>
+<p class="answer">Please post on StackOverflow's <a href="https://stackoverflow.com/questions/tagged/apache-spark"><code>apache-spark</code></a> tag or <a href="https://lists.apache.org/list.html?user@spark.apache.org">Spark Users</a> mailing list.  For more information, please refer to <a href="https://spark.apache.org/community.html#have-questions">Have Questions?</a>.  We'll be glad to help!</p>
 </p>
 
   </div>