Added 'member' to the 'raw_id_fields' setting of hte notification admin
model.

This should fix issue GVIPK-72.
fix last_seen test
Merge branch 'develop' of github.com:praekelt/jmbo-foundry into develop
Merge branch 'develop' of github.com:praekelt/jmbo-foundry into develop
Added a preview for the blog post content field in the blog post admin list view
make truncation of blog content robust
Merge branch 'feature/blogpost_content_admin_preview' into develop
Merge branch 'develop' into feature/listing_multiple_categories