added bootstrap tool tip to dual stack bar
 added bootstrap tool tip to heat map
 added bootstrap tool tip to hexogonal maps
 added bootstrap tool tip to horizontal bar
 added bootstrap tooltip to irregular histgram
 added bootstrap tooltip to marrey trains
 fine tuned bootstrap tooltip to marrey trains
 added bootstrap tooltip to negative bar and marimekko charts
 added bootstrap tooltip to scatter plot
 added bootstrap tooltip to sortable bar
 added bootstrap tooltip to stack to multiples