Show parent comment now displays all of the accessible parents.
Allow holding open the popup.

If the user holds the mouse over the parent link for 1 second then they
will be given 1 second to move the cursor to the showParent popup to
hold it open.
Reversed the order shown in the popup.
Documented the how the hover phases work.
Renamed the show/hide methods.
Made it easier for the user to discover how to make the popup stay open.
Allow the parent hover to be set to appear above the cursor.

Also including several additional operations to strip unused things
from the hover.
Code cleanup
Added voting from the panel.

Needs refactoring since it is ugly right now.
Made the vote support code much nicer.
Add a visual cue to indicate which comments are the replies.
Change showCommentHover to accept an element.
Add key shortcut to display the parent hover.

Default shortcut is shift-p
Add missing portions of the last 2 commits.
Provide a link to go to the actual comment.
Clean out image viewer stuff.
Made the goto comment link go to the right comment.
Properly remove a certain class

`RES-keyNav-activeElement` was being remove from the wrong places
Merge pull request #472 from gamefreak/show-multiple-parents

Adapt the show parent hover to display all parents of the comment.