Merge pull request #7 from ralph-moeritz/master

Added support for multiple blogs
Minor cleanups to load-config.
Another minor load-config cleanup.
Update README to mention support for multi-site publishing.
First pass at support for multiple content-types. WARNING: Indices and feeds are broken.
Fix feeds and indices.
Minor thinko/bugfix.
Text is the universal interface.
TODO notes and shout content-type thoughts.
Fix Mathjax plugin.
Tweak the language in indices.
Fix README examples/ paths.
Stick with indices rendering all content rather than having content types control their inclusion at this time.
Update export list to expose new API.
Release: Version 0.8! NEWS tells the story.
Docs update and package tweaks.
DO-CTYPES bugfix.
Merge pull request #8 from redline6561/content-types

Extensible Content types.
Fix typo in readme.
Merge pull request #9 from danieldickison/master

Fix typo in readme