twitter-bootstrap-rails.gem glyphicon fix

bootstrap_and_overrides.css.less

// Glyphicons
@import "twitter/bootstrap/glyphicons.less";
@font-face {
  font-family: 'Glyphicons Halflings';
  src: asset-url('glyphicons-halflings-regular.eot');
  src: asset-url('glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'), asset-url('glyphicons-halflings-regular.woff') format('woff'), asset-url('glyphicons-halflings-regular.ttf') format('truetype'), asset-url('glyphicons-halflings-regular.svg#glyphicons-halflingsregular') format('svg');
}