PopOver menu now auto closes, if user doesnt interact with it, for
a predefined timeout period.
Change the button border color, which seems to make it more pleasent
with current backgrounds at different places.
Update usage note wrt vision and click to toggle wrt title area.
Make the restore / load session block into a details based block.
Also place it into the parent div immidiately, but in hidden state.
Inturn only if a corresponding entry found in the db, create the
button for loading, as well as unhide it. This ensures that the
restore block's position|order doesnt change in the set of ui
elements wrt usage,restore,settings-info.
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