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, 22 insertions, 0 deletions

diff --git a/js/lang-tabs.js b/js/lang-tabs.js
new file mode 100644
index 000000000..bf9efe068
--- /dev/null
+++ b/js/lang-tabs.js
@@ -0,0 +1,22 @@
+// Switch all Spark code examples on the page to a particular language when a
+// tab for that language is clicked.
+
+function changeLanguage(lang) {
+  return function(e) {
+    e.preventDefault();
+    var scrollOffset = $(this).offset().top - $(document).scrollTop();
+    $(".tab-pane").removeClass("active");
+    $(".tab-pane-" + lang).addClass("active");
+    $(".lang-tab").removeClass("active");
+    $(".lang-tab-" + lang).addClass("active");
+    $(document).scrollTop($(this).offset().top - scrollOffset);
+  }
+}
+
+$(function() {
+  var languages = ["scala", "java", "python"];
+  for (var i = 0; i < languages.length; i++) {
+    var lang = languages[i];
+    $(".lang-tab-" + lang).click(changeLanguage(lang));
+  }
+});