Issue #658 patch: updating landing page for screened comments

Tested on my dreamhack: 

Replied to the journal owner's own screened comment: http://test-free.quartzpebble.hack.dreamwidth.net/1202.html?view=1458#cmt1458
Result:
Your comment has been added. According to this journal's settings, it was marked as screened, and will be visible only to you until you choose to unscreen it. View your comment.

Commented here, replying to another journal's screened comment: http://test-free.quartzpebble.hack.dreamwidth.net/1202.html?thread=1202#cmt1202
Result:
Your comment has been added. According to this journal's settings, it was marked as screened, and will be visible only to you until you choose to unscreen it. View your comment.

Replying to own screened comment on own post in community. http://test-comm-free.quartzpebble.hack.dreamwidth.net/443.html?view=699#cmt699
Result:
Your comment has been added. According to this community or entry's settings, it was marked as screened, and will be visible only to you and any other community admins until one of you chooses to unscreen it. View your comment.

Community administrator replies to non-member's screened comment. http://test-comm-free.quartzpebble.hack.dreamwidth.net/443.html?view=1211#cmt1211
Result:
Your comment has been added. According to this community or entry's settings, it was marked as screened, and will be visible only to you and any other community admins until one of you chooses to unscreen it. View your comment.