changed placement of color selector popup

src/app/panels/graph/legend.html

@@ -5,7 +5,7 @@
        ng-class="{'pull-right': series.yaxis === 2, 'graph-legend-series-hidden': hiddenSeries[series.alias]}"
        >
     <div class="graph-legend-icon">
-      <i class='icon-minus pointer' ng-style="{color: series.color}" bs-popover="'colorPopup.html'">
+      <i class='icon-minus pointer' ng-style="{color: series.color}" bs-popover="'colorPopup.html'" data-placement="bottom">
       </i>
     </div>
     <div class="graph-legend-alias small">