Documented in README.markdown. Bumped version to 1.1 in Rakefile.
This fixes a bug which caused extra blank lines to be inserted at the beginning of converted text.
The markdown extension has been renamed peg_markdown. The class has been renamed PEGMarkdown. You can still just: require 'markdown' -- the ::Markdown constant will be set to PEGMarkdown if it's not already defined. IOW, this should be a mostly backward compatible change.
We've fixed some leaks in peg-markdown and added a few functions for use in libraries. It's still not suitable for use in long-running processes but RSS growth per-parse has decreased by about 10x. Also, note that the peg-markdown submodule has been changed to point to git://github.com/rtomayko/peg-markdown.git -- you may need to remove the submodule config entry from your .git/config file and run the submodule:init rake task.