Added server side latest blog post caching (#472)
Added client side for latest blog post fetching (#472)
Fixed Travis errors
Fixed another Travis build error
Caching all blog posts, publishing latest to client
Implemented Tumblr sync to local collection
Sleeping between Tumblr requests, checking return status
Added blog post count to statistics publish
Changed client side subscribe to always get one post
Added admin dashboard button to force blog sync
Disabled parallel cache updates
Fixed commented global variables issue
Simplified client side
Sending latestPost object to template
Merge branch 'development' into blog-posts
Renaming.
Changes here and there.

The biggest is rewrite into blocking code of Tumblr blog posts fetching.
Merge branch 'development' into blog-posts
Merge pull request #515 from peerlibrary/blog-posts

Show latest blog post link on the main page