R1:6c46f27d98c4

Add quest objectives to the minimap

Summary:
Add important objectives (like waygates and quest markers) to the minimap.

This also probably fixes @cspeckmim's bug with the {key @} keyboard shortcut.

Test Plan:
(This is probably easier to undestand if you `arc patch` + click around.)

{F4966037}

Reviewers: chad, amckinley

Reviewed By: chad

Subscribers: cspeckmim

Differential Revision: https://secure.phabricator.com/D17955