Fix testcase

[iromli]

This changeset contains minor fixes:

• users/utilities/test/test_db_handler.py: previous testcase failed because we're sending 10 values into 9-columns table
• by adding MAIL_SUPPRESS_SEND option, runtests.sh will not send the actual email; quite useful for people who don't have mail server installed on their machines

[iromli]

Oh, TESTING (https://github.com/id-python/members/blob/develop/users/config.py.test#L29) does the same thing with MAIL_SUPPRESS_SEND. Likely i was using a production configuration then.

I will leave MAIL_SUPPRESS_SEND there just for clarity.

[akbargumbira]

Hi @iromli, thanks for the PR. I will merge this

[iromli]

@akbargumbira thanks