Multiple changes:

 - blog_basepath config option now mandatory
 - next and previous links on post view
 - post view shows post date and tags
Tag routing

- This commit adds support for routing tags
Merge pull request #3 from symfony-cmf/tagging

Tag routing
Renamed tree form service
Merge pull request #7 from dantleech/rename

Renamed tree form service
cosmetics
updated to new Referrer xml syntax
update comment due to PHPCR ODM BC break
Resolved conflicts
Refactored to use auto routes
Merge remote-tracking branch 'origin/auto_route' into auto_route

Conflicts:
	DependencyInjection/SymfonyCmfBlogExtension.php