Plugin Priority Unbreakening

[edunham]

Plugins have priorities. This is good.

What is not good is that the priorities are hard-coded integers in the body of each plugin.

That should go away.

Instead, plugins should get priorities based on the order they're declared in the settings file.

The top plugin in the list should have the highest priority, and the bottom plugin should have the lowest.

This makes priorities sort of ephemeral per time the config is read but that is ok because they can and should change as needed.