Add blog_admin as model, refactor
Merge branch 'add_article_controller_20130209' of github.com:abangratz/penpusher-admin into add_article_controller_20130209

* 'add_article_controller_20130209' of github.com:abangratz/penpusher-admin:
  Add better errors. You'll love it.
  Add details to articles controller
  Add blog model and spec
  Add routing comments for clarity
  Add discover for autotest
  Extend articles feature to reflect adding
  Install pry-remote and dependencies

Conflicts:
	features/articles.feature
Create article, add to entries ; refactor
Refactor: change member variable name
Add article model and spec
Fix and refactor blog admin model
Refactor articles controller: use Function Injection
Make form_for work for models without to_key
Add first css thingies.
Add errors field, make new params mandatory
Use correct blog admin interface for entries
Fix form and features for ArticleController#new