A user is unable to add a folder in the Media Gallery portlet.
Steps to reproduce:
1. Add the Media Gallery portlet to site page
2. Go to portlet configuration
3. Check "Show Actions, Show Folder Menu, Show Navigation Links, Show Search" and save
4. Go back to Media Gallery portlet
5. Click on Actions > Add Folder
6. Enter text into entry fields and click save
MG Folder publishes with a success message
Error message appears. Folder is not published.
Reproduced on: Tomcat 7.0.62 + MySQL 5.5. Portal master GIT ID: 3189b82e9c5e7ddc5067a1233f16caca23e5aa42