Use FontAwesome icons for size-toggle
Style changes to qv-bar

The title now links to something, and added hover color changes
Shifted code around, made transitions nicer

Transitions now run on a setTimeout, so qv will expand before
the iframe is loaded. looks nicer aesthetically but code-wise nay.
Realized that qv-bar should only be loaded once (when page loads),
so I shifted init_qv_bar right to the top, now its not longer
loaded at every hover.