Change to new posterous API
YAML front matter fix, cleaned up slug generation, added tags and store some posterous information from the original post.
Merge pull request #1 from simensen/alagu-master

Fixed critical bug, added a few minor features
Merge remote-tracking branch 'origin/alagu-master' into alagu-posterous-importer-rebased

Conflict created due to #472.

Conflicts:
	lib/jekyll/migrators/posterous.rb
Handle Posterous rate limiting
fix issue 457: Custom destination in _config.yml causes jekyll server to auto-regenerate continuously
Merge branch 'alagu-posterous-importer-rebased' of git://github.com/simensen/jekyll
Merge branch 'master' of git://github.com/mojombo/jekyll
Add pull request #569 to history
A better way to preview and release the Jekyll site.
Do not copy _site dir to gh-pages dir on release.
Add site namespace and rename site preview/publish rake tasks.
fix error for case with wrong encoding or error in YAML
fix error for case with broken encoding
Use Launchy for cross platform site:preview. Thx @ixti.
More robust site:publish.
Add testcases for YAML syntax error and non UTF-8 encoding
Update Dependencies in Readme, alphabetize
Update history.
Update site dir with contents of #583 at rev cb19367.

This is the big site redesign by @cobyism. To work with the new
site deployment mechanism, it is being copied from the gh-pages
branch of that PR into the existing site dir. Before we finally
deploy the new site, we should remember to merge #583 so that we
keep all the history from that PR.