I've tried to integrate bootstrap following this procedure found on stackoverflow (my rails version is the 3.2.17, this is a difference), so without a gem but just including the bootstrap files in the relevant project directories.
Then i've created an HTML page and i put it in the project public directory.
This is the code:
<!DOCTYPE html>
<html>
<head>
<title>Bootsrap Test 01</title>
<link rel="stylesheet" href="css/bootstrap.css">
<script src="js/bootstrap.min.js" type="text/javascript"></script>
</head>
...
But when i load the page and inspect it (it loads) i can see that the GETs produces the errors below:
GET http://localhost:3000/css/bootstrap.css 404 (Not Found)
GET http://localhost:3000/js/bootstrap.min.js 404 (Not Found)