Footer of "Developer documentation" should be full width
Make text in footer grey

So that it doesn't stand out so much; the footer shouldn't compete with
the main content.
Introduction: Use new markdown template for site-wide consistency

I'll migrate the remaining articles in subsequent commits.
Introducing stb-tester: Mention `stbt power`
Highlight "Developer documentation" in navbar for relevant articles

Any article linked from developer.html sets the pandoc variable
"active-developer=true" so that the "Developer documentation" link in
the navbar gets highlighted.
Show article-specific copyright in footer

All the sed trickery can be replaced by pandoc variables in the source
markdown file itself, supported from pandoc 1.12 (see
http://johnmacfarlane.net/pandoc/releases.html#pandoc-1.12-2013-09-15 ).
But I'll wait until pandoc 1.12 is provided by my package manager
(macports).
Makefile: Silent rules
Getting started: Use new markdown template
Match parameters: Use new markdown template
Video-capture hardware: Use new markdown template
Hardware, Getting started: Simplify HDPVR pipeline

Since stb-tester 0.14 (?) we can simply use "decodebin2" without
explicitly throwing away the audio stream (stb-tester still doesn't
do anything with the audio, but at least this saves typing and it's
more similar to all the other hardware's pipelines).
Runner: Use new markdown template
stb-tester.css: Remove css unused since 39711edb
Infrared hardware: Use new markdown template
Infrared, Hardware: Add "and contributors" to copyright notice

Because some of this information is sent in by outsiders, even though I
write it up myself.
Configuring LIRC: Use new markdown template
Multi LIRC: Use new markdown template
Jenkins: Use new markdown template
Shell tutorial: Use new markdown template

The "highlight-bash" perl script is quite nasty. If anyone has to
maintain this, I give you permission to get rid of the "highlighting"
altogether (actually, it's linking to reference documentation for shell
commands and bash builtins -- I thought it would be nice to try some
unobtrusive documentation).
Shell tutorial: Minor wording & typography fixes