Loads user tooltips lazily
Fixes layout of avatar tooltips in comments
Adds avatar to user tooltips
Merge branch 'master' into remote-user-tooltips

Conflicts:
	app/assets/javascripts/application.js.coffee
	app/assets/stylesheets/application/models/_user.css.sass
	app/views/users/_user.html.haml
Fixes tooltip styling
Fixes remote tooltip behaviour
Permits disabling of user tooltips
Merge branch 'master' into remote-user-tooltips
Busts user partial cache
Fixes layout/tooltip issue
Fixes tooltips not getting destroyed
Minor tweaks to avatar/tooltip styling
Merge pull request #135 from mezis/remote-user-tooltips

Remote user tooltips