Update for 4.0.3, Xoom, etc...

Change-Id: I9e7e5039acdfb5309b09aab345a5c2e608f2901a
diff --git a/src/source/initializing.md b/src/source/initializing.md
index ce414e9..0cce5fb 100644
--- a/src/source/initializing.md
+++ b/src/source/initializing.md
@@ -73,7 +73,7 @@
       zip curl zlib1g-dev libc6-dev lib32ncurses5-dev ia32-libs \
       x11proto-core-dev libx11-dev lib32readline5-dev lib32z-dev \
       libgl1-mesa-dev g++-multilib mingw32 tofrodos python-markdown \
-      libxml2-utils
+      libxml2-utils xsltproc
 
 On Ubuntu 10.10:
 
@@ -88,7 +88,7 @@
     $ sudo apt-get install git-core gnupg flex bison gperf build-essential \
       zip curl zlib1g-dev libc6-dev libncurses5-dev x11proto-core-dev \
       libx11-dev libreadline6-dev libgl1-mesa-dev tofrodos python-markdown \
-      libxml2-utils
+      libxml2-utils xsltproc
 
 ## Configuring USB Access ##