Upgrade routine for old Stream Settings records

[frankiejarrett]

Since we now have improved action links for Stream Settings (see #305) we need to update past entries by giving them an option_key meta value.

We can do this by selecting all stream_meta that has an option key equal to wp_stream and then use the label meta to reference the settings fields array to determine the option_key.

/cc @powelski

[frankiejarrett]

@powelski Can you take this one?

[c3mdigital]

@fjarrett & @powelski Couldn't this be part of the #379 database update routine? I can include this in the process.

[frankiejarrett]

@c3mdigital We can just get the routine API done and then release the routine for this later. It might even be a moot point now since this issue is almost a month old. Still, I'd probably like to do it to ensure 100% backwards compat with old data that might exist in someone's Stream data.

[frankiejarrett]

@c3mdigital Yes, please go ahead and include an update routine for these as part of #379.

[frankiejarrett]

This is so old that it really no longer applies. Closing.