createUserListCSV doesn't handle unicode and delimiters in FullName

The full name of a user might have unicode characters. These are not handled correctly at the moment.

dataWriter.writerow([user['fullName'], user['email'], user['username'], user['role'], time.strftime("%Y-%m-%d",time.gmtime(user['created']/1000))])
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 4: ordinal not in range(128)

The full name of a user might contain a delimiter character (such as a comma) so a csv.QUOTE_NONNUMERIC may be more appropriate.

Start at createUserListCSV and reproduce the export with a fullName containing a Unicode character and a comma. The work is done when both names export without an encoding error and CSV fields containing delimiters remain intact.

Written by the indexing model from the issue text.