Docs: Update Ubuntu 14.04 apt-get command to latest package set

Bug: 24726684
Change-Id: I802fa15912580a734989fb6be194133b303c6fe9
diff --git a/src/source/initializing.jd b/src/source/initializing.jd
index ab91654..8aa0104 100644
--- a/src/source/initializing.jd
+++ b/src/source/initializing.jd
@@ -80,7 +80,14 @@
 
 <h3 id="installing-required-packages-ubuntu-1404">Installing required packages (Ubuntu 14.04)</h3>
 <p>You will need a 64-bit version of Ubuntu. Ubuntu 14.04 is recommended.</p>
-<pre><code>$ sudo apt-get install bison g++-multilib git gperf libxml2-utils make python-networkx zlib1g-dev:i386 zip</code></pre>
+<pre><code>$ sudo apt-get install git-core gnupg flex bison gperf build-essential \
+  zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 \
+  lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache \
+  libgl1-mesa-dev libxml2-utils xsltproc unzip
+</code></pre>
+
+<p class="note"><strong>Note:</strong> To use SELinux tools for policy
+analysis, also install the <code>python-networkx</code> package.</p>
 
 <h3 id="installing-required-packages-ubuntu-1204">Installing required packages (Ubuntu 12.04)</h3>
 <p>You may use Ubuntu 12.04 to build older versions of Android. Version 12.04 is not supported on master or recent releases.</p>