<div class="discussion-comment" ng-if="display_events_user_comment">
    <p class="discussion-comment-author">
        {{ event.author.full_name }}
        <span class="pull-right">
            <span time-moment eventdate="event.created_at"></span>
            &nbsp;
            <button class="btn btn-default btn-xs" ng-click="quote(event)"
                    title="Quote">
                <i class="fa fa-quote-left"></i>
            </button>
        </span>
    </p>

    <insert-markdown ng-show="event.comment.content"
       content="event.comment.content">
    </insert-markdown>

    <p><em ng-hide="event.comment.content"
           class="text-muted">
        The author left a blank comment.
    </em></p>
</div>

<div class="discussion-comment" ng-if="display_events_user_comment">
    <p class="discussion-comment-author">
        {{ event.author.full_name }}
        <span class="pull-right">
            <span time-moment eventdate="event.created_at"></span>
            &nbsp;
            <button class="btn btn-default btn-xs" ng-click="quote(event)" ng-show="isLoggedIn"
                    title="Quote">
                <i class="fa fa-quote-left"></i>
            </button>
        </span>
    </p>

    <insert-markdown ng-show="event.comment.content"
       content="event.comment.content">
    </insert-markdown>

    <p><em ng-hide="event.comment.content"
           class="text-muted">
        The author left a blank comment.
    </em></p>
</div>

Hide 'quote' button for non-logged-in users
Hide 'quote' button for non-logged-in users

Previously, the quote button appeared with a hover cursor, even for
logged out users, but it wasn't actually interactive. This hides the
button in those situations to avoid confusion.

Change-Id: Ib88b0694b39a911136d25988c05b8617dea287b5
