Lots of changes to the server configuration pages

[dkanada]

I have been trying to simplify the layout of the server settings. I will list some of the larger changes below in no particular order. It could use some testing once I move a few more things around.

1. The plugin catalog was cloned in five different sections including the old sync interface. This was in the form of appservices.js which was a feature specific plugin page, which I removed in favor of the main plugin page.
2. There was a network share path setting inside the directory browser component which seemed like an odd place for a setting. I moved it to the General section.
3. The DLNA page had dead code referencing the streaming bitrate limit, which is currently in the playback section.
4. I was thinking of moving all path related settings into the General tab and linking it from the Paths widget on the dashboard. (left the transcode and ffmpeg paths in the Transcoding section for now, wanted to get feedback before moving those two)

[JustAMan]

Mostly questions.
One blocker is the change of behaviour in livetvtuner.js near isM3uVariant(...) check.

I would also like to see comparison screenshots of "before" vs "after", as it's hard to picture in mind what those js/css changes would do to the dashboard.

[dkanada]

[cvium]

Network share path is per path and not a global setting...

[JustAMan]

LGTM

[dkanada]

This pull request is now waiting on the plugin to get moved to the organization.