Replace all the gifs

Replace the gifs with png, as they work in PDF's.
Exclude ja and ru from PDF as they are not currently working
because of issues with pdflatex.

Makefile

@@ -9,6 +9,10 @@ ES_HOST =
 
 # Languages that can be built.
 LANGS = en es fr ja pt ru
+
+# pdflatex does not like ja or ru for some reason.
+PDF_LANGS = en es fr pt
+
 DEST = website
 
 # Dependencies to perform before running other builds.
@@ -27,8 +31,8 @@ SPHINX_DEPENDENCIES = $(foreach lang, $(LANGS), $(lang)/Makefile)
 html: $(foreach lang, $(LANGS), html-$(lang))
 htmlhelp: $(foreach lang, $(LANGS), htmlhelp-$(lang))
 epub: $(foreach lang, $(LANGS), epub-$(lang))
-latex: $(foreach lang, $(LANGS), latex-$(lang))
-pdf: $(foreach lang, $(LANGS), pdf-$(lang))
+latex: $(foreach lang, $(PDF_LANGS), latex-$(lang))
+pdf: $(foreach lang, $(PDF_LANGS), pdf-$(lang))
 htmlhelp: $(foreach lang, $(LANGS), htmlhelp-$(lang))
 populate-index: $(foreach lang, $(LANGS), populate-index-$(lang))
 
@@ -70,7 +74,7 @@ website: website-dirs html populate-index epub pdf
 	$(foreach lang, $(LANGS), cp -r build/epub/$(lang)/*.epub $(DEST)/_downloads/$(lang) || true;)
 
 	# Move PDF files
-	$(foreach lang, $(LANGS), [ -f build/latex/$(lang)/*.pdf ] && cp -r build/latex/$(lang)/*.pdf $(DEST)/_downloads/$(lang) || true;)
+	$(foreach lang, $(PDF_LANGS), [ -f build/latex/$(lang)/*.pdf ] && cp -r build/latex/$(lang)/*.pdf $(DEST)/_downloads/$(lang) || true;)
 
 clean:
 	rm -rf build/*

es/getting-started/a-typical-cakephp-request.rst

@@ -7,7 +7,7 @@ o Request. Continuando con nuestro ejemplo anterior, imaginemos que nuestro
 amigo Ricardo acaba de pinchar en el link "Compra un Pastel Personalizado"
 en una aplicación CakePHP.
 
-.. figure:: /_static/img/typical-cake-request.gif
+.. figure:: /_static/img/typical-cake-request.png
    :align: center
    :alt: Diagrama de flujo que muestra un Request típico en CakePHP
 

ja/getting-started/a-typical-cakephp-request.rst

@@ -5,7 +5,7 @@ CakePHPの基本的な構成要素について既に考えました。
 ここからは、基本的なリクエストがあった場合、個々のオブジェクトがそれをどう処理して完結させるのか、ということを調べてみましょう。
 前からの例として、我らのリカルドさんが、CakePHPアプリケーションの「特注ケーキを今すぐ購入！」というリンクをクリックしたとしましょう。
 
-.. figure:: /_static/img/typical-cake-request.gif
+.. figure:: /_static/img/typical-cake-request.png
    :align: center
    :alt: Flow diagram showing a typical CakePHP request
 

pt/getting-started/a-typical-cakephp-request.rst

@@ -8,7 +8,7 @@ Ricardo apenas clicou no link "Compre um bolo personalizado agora!" em uma
 `landing page <http://pt.wikipedia.org/wiki/Landing_page>`_ de uma aplicação
 CakePHP.
 
-.. figure:: /_static/img/typical-cake-request.gif
+.. figure:: /_static/img/typical-cake-request.png
    :align: center
    :alt: Um diagrama de fluxo mostrando uma típica requisição CakePHP