Update BS to v3.3.7

bootstrap/css/bootstrap.css

@@ -1,6 +1,6 @@
 /*!
- * Bootstrap v3.3.6 (http://getbootstrap.com)
- * Copyright 2011-2015 Twitter, Inc.
+ * Bootstrap v3.3.7 (http://getbootstrap.com)
+ * Copyright 2011-2016 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 /*! normalize.css v3.0.3 | MIT License | github.com/necolas/normalize.css */
@@ -1106,7 +1106,6 @@ a:focus {
   text-decoration: underline;
 }
 a:focus {
-  outline: thin dotted;
   outline: 5px auto -webkit-focus-ring-color;
   outline-offset: -2px;
 }
@@ -2537,7 +2536,6 @@ select[size] {
 input[type="file"]:focus,
 input[type="radio"]:focus,
 input[type="checkbox"]:focus {
-  outline: thin dotted;
   outline: 5px auto -webkit-focus-ring-color;
   outline-offset: -2px;
 }
@@ -3029,7 +3027,6 @@ select[multiple].input-lg {
 .btn.focus,
 .btn:active.focus,
 .btn.active.focus {
-  outline: thin dotted;
   outline: 5px auto -webkit-focus-ring-color;
   outline-offset: -2px;
 }