These text fields need a default of NULL aparently.

Signed-off-by: Malf Furious <m@lfurio.us>

I found myself complicating the data model of this class of objects and
wanted to take a clean approach to its design.  The key differences are
as follows:

        * We now reference a message object for the issue's OP, as
        opposed to directly containing the message data

        This affords the OP _all_ of the standard features of a Scrott
        message, including separately tracked authorship data, file
        attachments.

        * Multiple assignees is implemented in the design

        Finally.

        * Seen flag is removed

        This can be implicitly tracked via all sub-object messages and
        the views meta-table.

This places all (both) of the service configuration files together and
cleans up the top-level directory.  The file is renamed to 'mysql.sql'
to indicate the particular service it corresponds to.

I've recently been fighting my dev server to actually work with PHP.  It
seems like everytime I hop a system, or install nginx from scratch,
something in my config is broken.  So, I'm finally committing a
'working' (TM) baseline config to work off of when working with servers
in the future.  The idea is to add an Apache one at some point, too.