Consolidate nag messages

[thomasgriffin]

Although unfortunate, I can forsee some theme authors requiring/recommending many plugins. Right now, each plugin outputs an admin message. If we get upwards or 4 or 5 plugins, that is a lot of clutter in the UI. We should consolidate the each of the plugin messages into at max 2 messages. One message that lists all plugins that need to be installed and one message that lists all plugins that are installed but still need to be activated.

[GaryJones]

I agree. I'd even suggest consolidating it into a single message that has two paragraphs - one for required, one for recommended. It will mean some careful thought on creating the correct string format to allow it to be set as a config.

[thomasgriffin]

I've successfully fixed this issue in the latest push to dev. Closing

[thomasgriffin]

Oops, targeted wrong issue. This still needs to be addressed.

[thomasgriffin]

Ok, I'm tackling this issue right now. If I can get a viable solution, come behind me and check it out and let's push it to master for 2.1. This will be a good push point for that once it is fixed.