Tooltip options
List of options for tooltip for a dropdown menu button.
tooltipOptions(placement = "right", title = "Params", html = FALSE)
placement | 
 Placement of tooltip : right, top, bottom, left.  | 
title | 
 Text of the tooltip  | 
html | 
 Logical, allow HTML tags inside tooltip  | 
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.