Adding a media upload box to the display_vis page. Also making sure that only images ever make it to the visualizations tab
Merge branch 'mediaupload' of github.com:jdalphon/rSENSE into mediaupload
- Dont put media objects without users on the list
- Putting a media objects view on the visualizations page
Merge pull request #1208 from jdalphon/mediaupload

Mediaupload
Merge branch 'fix_data_entry' of github.com:jdalphon/rSENSE into fix_data_entry
Writting a test to make sure that edit uses the correct data format, and that it actually edits the data