Admin email setting

change the way the password reset unit test is done to avoid issues with the way mysql handles datetimes.

migrate existing installations and automatically set the `:admin-email` if it hasn't been set before.

updated shrinkwrap file

change the way the password reset unit test is done to avoid issues with the way mysql handles datetimes.

Need cond-as-> macro 

set a length on our varchar to keep mysql happy.

SQL Server Driver 

add in a small delay on view_log entries to account for the fact that MySQL datetimes don't include milliseconds.

GET /api/database/form_input shouldn't require auth

provide information about our `:engines` through our main MetabaseSettings which simplifies some things and removes the need for a /api/database/form_input endpoint.

Make `setup-db` take db details as an argument

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Database Schema Support (Implements #1306)