fixed issue 1594:radio widget layout conflicts with bootstrap, thanks Paolo Caruccio

applications/examples/static/css/web2py_bootstrap.css

@@ -233,10 +233,11 @@ div.controls .error {
 
 @media only screen and (max-width:979px){
   body{padding-top:0px;}
-  #navbar{top:5px;}
+  #navbar{/*top:5px;*/}
   div.flash{right:5px;}
   .dropdown-menu ul{visibility:visible;}
 }
+
 @media only screen and (max-width:479px){
   body{
     padding-left:10px;
@@ -250,3 +251,10 @@ div.controls .error {
     width:95%;
   }
 }
+
+@media (max-width: 767px) {
+    .navbar {
+        margin-right: -20px;
+        margin-left: -20px;
+    }
+}