changes need for admin site to work correctly
add function to check if new survey exists
Merge branch 'master' of https://github.com/biocore/american-gut-web into wwwadmin_changes
remove print statement
address comment from @wasade
add missing returns. Fix #319
Merge pull request #335 from squirrelo/issue-319

Add missing returns. Fix #319
Merge pull request #328 from teravest/wwwadmin_changes

changes need for admin site to work correctly
resolve merge conflict