Update site look and add pages for Streaming and MLlib

This monster commit does a variety of things:
- Update the site look and feel to be cleaner
- Add top-level points to front page
- Add a listing of related projects, and pages for those included in Spark
- Reorganize docs and community pages
- Make sure the site scales properly on mobile devices
- Add tabs to let users view the examples in any programming language

It's just a start, but should be a step towards a better web presence.

1 files changed, 77 insertions, 0 deletions

diff --git a/community.md b/community.md
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+---
+layout: global
+title: Community
+type: "page singular"
+navigation:
+  weight: 5
+  show: true
+---
+
+<h2>Spark Community</h2>
+
+<a name="mailing-lists"></a>
+<h3>Mailing Lists</h3>
+
+<p>Get help using Spark or contribute to the project on our mailing lists:</p>
+<ul>
+  <li>
+    <a href="http://apache-spark-user-list.1001560.n3.nabble.com">user@spark.incubator.apache.org</a> is for usage questions, help, and announcements. <a href="mailto:user-subscribe@spark.incubator.apache.org?subject=(send%20this%20email%20to%20subscribe)">(subscribe)</a> <a href="http://apache-spark-user-list.1001560.n3.nabble.com">(archives)</a>
+  </li>
+  <li>
+    <a href="http://apache-spark-developers-list.1001551.n3.nabble.com">dev@spark.incubator.apache.org</a> is for people who want to contribute code to Spark. <a href="mailto:dev-subscribe@spark.incubator.apache.org?subject=(send%20this%20email%20to%20subscribe)">(subscribe)</a> <a href="http://apache-spark-developers-list.1001551.n3.nabble.com">(archives)</a>
+  </li>
+</ul>
+
+<a name="events"></a>
+<h3>Events and Meetups</h3>
+
+<p>Conferences:</p>
+<ul>
+  <li>
+    <b><a href="http://spark-summit.org">Spark Summit:</a></b>
+    In December 2013, the community held the first <a href="http://spark-summit.org">Spark Summit</a>, with 30 talks from organizations using Apache Spark. Visit the <a href="http://spark-summit.org/summit-2013/">Summit archive page</a> for slides and videos of all the talks. <a href="http://spark-summit.org">Spark Summit 2014</a> is also coming up.
+  </li>
+</ul>
+
+<p>Meetups:</p>
+<ul>
+  <li>
+    <b><a href="http://www.meetup.com/spark-users/">Bay Area Spark Meetup:</a></b>
+    This group has been running monthly events since January 2012 in the San Francisco area.
+    The meetup page also contains an <a href="http://www.meetup.com/spark-users/events/past/">archive of past meetups</a>, including videos and <a href="http://www.meetup.com/spark-users/files/">slides</a> on most of the recent pages.
+  </li>
+  <li>
+    <b><a href="http://www.meetup.com/Seattle-Spark-Meetup/">Seattle Spark Meetup:</a></b> Newly formed group in Seattle.
+  </li>
+</ul>
+
+<p>If you'd like your meetup added, email <a href="mailto:user@spark.incubator.apache.org">user@spark.incubator.apache.org</a>.</p>
+
+<a name="issue-tracker"></a>
+<h3>Issue Tracker</h3>
+
+<p>The project tracks bugs and new features on <a href="https://spark-project.atlassian.net/browse/SPARK">JIRA</a>. If you'd like, you can also subscribe to the <a href="http://groups.google.com/group/spark-issues">spark-issues</a> group to receive emails about new or updated issues.</p>
+
+<h3>Powered By</h3>
+
+<p>Our wiki has a list of <a href="https://cwiki.apache.org/confluence/display/SPARK/Powered+By+Spark">projects and organizations powered by Spark</a>.</p>
+
+<a name="history"></a>
+<h3>Project History</h3>
+
+
+<p>
+Spark started as a research project at the <a href="https://amplab.cs.berkeley.edu">UC Berkeley AMPLab</a>
+in 2009, and was open sourced in early 2010.
+Many of the ideas behind the system are presented in various
+<a href="{{site.url}}research.html">research papers</a>.
+The AMPLab continues to perform research on both improving Spark and on systems built on top, such as
+<a href="{{site.shark_url}}">Shark</a>, <a href="{{site.graphx_url}}">GraphX</a>, and
+<a href="{{site.url}}streaming/">Spark Streaming</a>.
+</p>
+
+<p>
+After being released, Spark grew a developer community on GitHub and entered Apache in 2013
+as its permanent home.
+A wide range of contributors now develop the project (over 120 developers from 25 companies).
+</p>