[48469811] should show 'min' under duration column in interview list page

Signed-off-by: Henry Chen <hchen@vmware.com>
[48850305] duplicate error msg for invalid email

Since we use devise's validators, we don't need to add our own

Signed-off-by: Henry Chen <hchen@vmware.com>
[48469589] don't parse html tag in textarea
Signed-off-by: Henry Chen <hchen@vmware.com>
refresh db/schema.db based on latest definition

Signed-off-by: Henry Chen <hchen@vmware.com>
temporarily disable a failed filestorage case.

Signed-off-by: Henry Chen <hchen@vmware.com>
Merge pull request #127 from Henry-CF/duplicate_email_error

various small bugfixes