Fix specs and add cancan check to backend blog link.
Merge pull request #3 from JDutil/fixes

Fix specs and add cancan check to backend blog link.
add Spree::Config['blog_alias'] to use as blog namespace
modify blog routes
use blog_archive_path instead of news_archive_path
Merge b8in-modify-routes

Conflicts:
	app/views/spree/blog_entries/_news_archive.html.erb
	config/routes.rb
Fix specs.
Update readme.
merged upstream master