Make MySQLConfiguration non-constant

[0xTim]

We should allow the configuration in MySQLConfiguration to be changed by changing the properties to vars. This matches Postgres and makes it easier to set things like the TLSConfiguration

[lodenrogue]

I can give this a try

[lodenrogue]

PR: #212

Please review it. I've never worked with swift before and I have no way to test locally.

[fananek]

I’m afraid you edited wrong file. Issue is about MySQLConfiguration properties.

All these lets shall be changed to vars.

[lodenrogue]

Got it. I'll make that change

[lodenrogue]

PR: vapor/mysql-kit#309

I think a better approach is to just create a new MySQLConfiguration object and keep the fields immutable. But here's the change you requested in case you still want it.

[0xTim]

Fixed in vapor/mysql-kit#309