Filter other entries for only published items.
Track if a Mission/Training is unpublished.
Merge branch 'lessonbin' of github.com:fuzzie360/coursemology.org into lessonbin
Preliminary filtering of unpublished virtual entries.
Fix the comparison: we should be able to see the entry anyway if we can manage it; alternatively we have to check for read permissions.
Revert "Preliminary filtering of unpublished virtual entries."

This reverts commit 51e700da518742bcc2dca45f8119a9602658a9b0.
Set "real" entries as published.
Filter out unpublished missions/trainings in the view.
Merge branch 'lessonbin' of github.com:fuzzie360/coursemology.org into lessonbin
Indicate which missions/trainings are unpublished.
When deleting materials, if it is linked to a lesson plan, destroy that relationship also.
Merge branch 'lessonbin' of github.com:fuzzie360/coursemology.org into lessonbin
Merge branch 'lessonbin' of git://github.com/fuzzie360/coursemology.org into dev/raymoond_dev
Merge branch 'dev/raymoond_dev' of github.com:Coursemology/coursemology.org into dev/raymoond_deploy
Ensure that the files property of every virtual folder returns at least an empty list and never nil.
Implemented mark folder as read.
Fix button alignment.
Group the top right buttons for consistency with the Forums.
Use labels instead of prefixing a title with a string for better discoverability.
Add date added for mission and training virtual items.