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
No need to have a variable assignment, especially if it has the same name as the method parameter.
fix issue 457: Custom destination in _config.yml causes jekyll server to auto-regenerate continuously
Remove deletion of dot files on cleanup.

This is a potentially very dangerous action that's impossible to test that it's correct.
If the '..' check line ever disappears, even running the tests will start deleting
everything accessible on the person's computer.

All dot-files that are generated are already known by Jekyll as either a static file or
a page (yaml front matter), only remove those files.
Add checks to prevent accidental deletion of the source directory
Front-matter should be at start of file

It's the theme of the moment ; regexp checking.

Just in case we have two line start with --- in the file, we want to
make sure it's not interpreted as a front-matter.
make yaml parsing errors more informative
Update redcarpet support to version 2
Better error reporting on Liquid exceptions
Merge branch 'alagu-posterous-importer-rebased' of git://github.com/simensen/jekyll
Merge branch 'master' of git://github.com/mojombo/jekyll
Update pygments.rb version
Only pass first class to Pygments

This prevents an exception if something like the following is used:

~~~ {foo bar}
some code
~~~
Add license to gemspec
Merge pull request #683 from petedmarsh/master

Add license to gemspec
Merge branch 'redcarpet-update' of https://github.com/tombell/jekyll into tombell-redcarpet-update