getting-started, mega-manual: Added reference distro poky section

Added the new section "Reference Embedded Distribution (Poky)"
section to the getting-started manual.  The new section required
a new figure.  I had to add the figure to the figures folder of
both the getting-started and mega-manual books.  Updates to the
Makefile to include the new figure as part the tarfiles created
for each book.

(From yocto-docs rev: e5f44e17d4c1e55b6f229cc3745727e439b5bcb7)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/Makefile

@@ -90,6 +90,7 @@ ALLPREQ = html eclipse tarball
 TARFILES = getting-started-style.css getting-started.html figures/getting-started-title.png \
            figures/git-workflow.png figures/source-repos.png figures/index-downloads.png \
            figures/yp-download.png figures/YP-flow-diagram.png figures/key-dev-elements.png \
+           figures/poky-reference-distribution.png \
            eclipse
 MANUALS = $(DOC)/$(DOC).html $(DOC)/eclipse
 FIGURES = figures
@@ -274,7 +275,7 @@ TARFILES = mega-manual.html mega-style.css \
 	figures/sdk-generation.png figures/recipe-workflow.png \
 	figures/build-workspace-directory.png figures/mega-title.png \
 	figures/toaster-title.png figures/hosted-service.png \
-	figures/simple-configuration.png \
+	figures/simple-configuration.png figures/poky-reference-distribution.png \
 	figures/compatible-layers.png figures/import-layer.png figures/new-project.png \
 	figures/sdk-environment.png figures/sdk-installed-standard-sdk-directory.png \
 	figures/sdk-devtool-add-flow.png figures/sdk-installed-extensible-sdk-directory.png \