add js to enable popover and hover message
diff --git a/inst/htmlwidgets/lib/kePrint-0.0.1/kePrint.js b/inst/htmlwidgets/lib/kePrint-0.0.1/kePrint.js
new file mode 100644
index 0000000..4f9728d
--- /dev/null
+++ b/inst/htmlwidgets/lib/kePrint-0.0.1/kePrint.js
@@ -0,0 +1,4 @@
+$(document).ready(function(){
+    $('[data-toggle="tooltip"]').tooltip();
+    $('[data-toggle="popover"]').popover();
+});