Update web trackers

[marcosmenendez]

TGD web trackers are based on disconnect.me file, but grouped on a different way. We should set up a tool to compare both files and list the trackers that have been added or that have drop out of disconnect list. Files to compare are:
https://raw.github.com/disconnectme/disconnect/master/firefox/content/disconnect.safariextension/opera/chrome/data/services.json
https://github.com/thegooddata/extension/blob/94d49837a68c5c9382b2c8e20b59d36c7d0d6fea/chrome/data/services.json

This routine should be available and executable from the admin panel and results presented there as well

Then we could manually add those threats to our file.

[marcosmenendez]

@bodiapz can you explain me how to use it? I just see one json with all the trackers, but not the result expected:

1. Trackers that are not longer in disconnect.me file but are still on our file
2. Trackers that have been added to disconnect.me and are still not on our file

BTW, this compare option should not be part of the main menu, but should appear when admin visits "Manage webtracks"

[marcosmenendez]

Work done here is a complete loss of time. Requirement has not been understood at all, and no question has been risen to clarify it.

Anyway, I've noticed that disconnectme is no longer updating its list, so I have added a new issue #152 to update the list using other sources of data