Version 9 (Feb 21 2020):- Fix bug of privacy settings

Version 7 (Jul 07 2018):- Supported SEO for photo view page

Version 6:

- Refresh   contest page after the user joined the contest
- Put a link to return to the specific contest home page when viewing photo

Version 4:
- Supported multi languages for Category.

Version 3:
- Fixed some bugs.
- Implemented  newsfeed notification when a participant upload a photo
- Implementednotification participant if voted a picture of
- Implemented  notifting that someone have added photos in a contest in which you voted