[Eventbrite] Exclude help.eventbrite.co.uk

And mark partial.

Conflicts:
	src/chrome/content/rules/Eventbrite.xml
[Mozilla] Exclude mig.mozilla.org

Conflicts:
	src/chrome/content/rules/Mozilla.xml
[Scientific American] Force www

Conflicts:
	src/chrome/content/rules/Scientific-American.xml
[Scientific American] Exclude articles/

And restrict cookie coverage accordingly.
Merge remote-tracking branch 'efforg/4.0' into 4.0