Remove obsolete json dependency.
Fixes the random on the theme header
Make article dashboard filters send correct search params

Category, author and published date filters on Article dashboard
were not correctly filtering.

Updates to send as part of search hash instead of GET query as
the latter was still showing "all" for each respective filter.

This now matches up with article state (published, draft, etc.)
and will restrict listings as expected.
Merge pull request #115 from randomecho/article-dashboard-filters

Make article dashboard filters send correct search params. 
Merge pull request #114 from slainer68/master

Remove old json dependency
Fix dashboard link to display all of Your Posts

Quick link on dashboard to show all your posts was linking to
the following URL:

    http://localhost:3000/admin/content?search=search[user_id]%3D1

"search" is expected to be a hash, not a normal query
string key. Link needs instead to send:

    http://localhost:3000/admin/content?search[user_id]=1

Now matches the expected search filter calls also
used in "Manage articles" admin section.

Fixes #110
Merge pull request #116 from randomecho/110-your-posts-quicklink-from-dashboard

Fix dashboard link to display all of Your Posts