add bootstrap dependencies

Author: mwunderl

public/index.html

@@ -19,7 +19,10 @@
     <script src="app/gameCollection.js"></script>
     <script src="app/mainController.js"></script>
     <link rel="stylesheet" href="css/scorekeep.css"></link>
-    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.5/css/bootstrap.min.css" integrity="sha384-AysaV+vQoT3kOAXZkl02PThvDr8HYKPZhNT5h/CXfBThSRXQ6jW5DO2ekP5ViFdi" crossorigin="anonymous">
+    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.5/css/bootstrap.min.css" integrity="sha384-AysaV+vQoT3kOAXZkl02PThvDr8HYKPZhNT5h/CXfBThSRXQ6jW5DO2ekP5ViFdi" crossorigin="anonymous"></link>
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/tether/1.3.7/css/tether.css"></link>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.3.7/js/tether.js"></script>
+    <script src="https://code.jquery.com/jquery-3.1.1.js" integrity="sha256-16cdPddA6VdVInumRGo6IbivbERE8p7CQR3HzTBuELA=" crossorigin="anonymous"></script>
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.5/js/bootstrap.min.js" integrity="sha384-BLiI7JTZm+JWlgKa0M0kGRpJbF2J8q+qreVrKBC47e3K6BW78kGLrCkeRX6I9RoK" crossorigin="anonymous"></script>
   </head>