pyblog: implement preview

Also tweaked icons a bit.

Note that this commit doesn't really work: I implemented a "stoppable
HTTP Server" here to be stopped when "mother process" receives
SIGINT (i.e., KeyboardInterrupt), without realizing that all porcesses
get SIGINT. Therefore, the custom server is hardly needed.

See http://git.io/vJ9yA for more information.

(This implementation has some value tought, that's why I'm committing to
keep it in history.)

3 files changed, 2 insertions, 2 deletions

diff --git a/source/img/README.rst b/source/img/README.rst
index be3eabf7..7e902808 100644
--- a/source/img/README.rst
+++ b/source/img/README.rst
@@ -2,9 +2,9 @@ The icon and favicon files are generated via the following commands: ::
 
   cd source/img
   xelatex icon.tex
-  convert icon.pdf -quality 400 -resize 100x100 icon.png
+  for size in 100 400; do convert icon.pdf -quality 400 -resize ${size}x${size} icon-${size}.png; done
   for size in 16 32 48 144 152; do convert icon.pdf -density 400 -resize ${size}x${size} favicon-${size}.png; done
-  optipng favicon-16.png favicon-32.png favicon-48.png favicon-144.png favicon-152.png
+  optipng favicon-16.png favicon-32.png favicon-48.png favicon-144.png favicon-152.png icon-100.png icon-400.png
   convert favicon-16.png favicon-32.png favicon-48.png ../favicon.ico
   rm favicon-16.png favicon-32.png favicon-48.png
 
diff --git a/source/img/icon.png b/source/img/icon-100.png
index 5f1f894b..7745469c 100644
--- a/source/img/icon.png
+++ b/source/img/icon-100.png
diff --git a/source/img/icon-400.png b/source/img/icon-400.png
new file mode 100644
index 00000000..9969f26c
--- /dev/null
+++ b/source/img/icon-400.png