Formatting changes for the README file.

  Nothing significant.
  Added POD.
  The fileglob plugin allows the content to be read.
  New release
  We don't need to run critic on releases.
  Mention the content for file_globbing.
  Mention height/width
  Document height/width in the file_glob example.
  Allow command-expansion in the config file.

  This means we can do something like this:

     copyright = &copy 2001-`date +%Y` Steve Kemp
  New plugin, for including remote RSS feeds.

  This makes updating front-pages to include references to blog-posts,
 etc, much simpler
  Document the RSS feed.
  Suggest the installation of libxml-feed-perl.

  This is a dependency of the Templer::Plugin::RSS plugin.
  Added Redis-plugin.

  This allows variable-values to be retrieved from redis-fetches
  Removed debugging print.
  Document the Redis plugin.
  Document XML::Feed as a requirement of the RSS plugin.

  This is just done for consistency.
  Fix the XML::Feed link
  Updated to include explicit mention of the backtick support.

  This allows commands to be executed in variable values.
Merge remote-tracking branch 'upstream/master'
  Add --debug flag.

  This dumps variable after expansion.  Part of issue #12.