Change default DB from MySQL placeholder to valid SQLite

[liilac]

See: #11 for discussion; #17 adds schema and instructions without making SQLite the default

• has zero impact on already set up sites
• at the moment all MySQL settings in settings.inc.php are placeholders
• MySQL requires substantially more setup than SQLite
• SQLite simplifies pomf set up
• instructions on how to set up SQLite (very simple) are covered in Added instructions and schema to use or migrate to SQLite #17
• no instructions on setting up MySQL provided

[jithatsonei]

this is implicating #17 is merged, which it has yet to be, so I will close it for now until that changes in the near future

[liilac]

@ewhal @alucard0134

Justification for closing was perceived reliance on open PR. That PR has since been merged, so that objection is no longer relevant.

[jithatsonei]

yep, reopened.

[jithatsonei]

..Then closed, we feel that MySQL will be the way to go for now in terms of the example configuration provided.

Thanks tho <3

Closing #11 also