全部はいらないよね？bootstrap-sassをカスタマイズして使う方法 ref: http://qiita.com/masamitsu-konya/items/e3630046774ac1fbd346

file0.txt

gem 'bootstrap-sass'
gem 'sass-rails'

file1.txt

gem 'autoprefixer-rails'

file10.txt

//= require bootstrap-sprockets-custom

file11.txt

$blue: #3677a3;
$blue-shade-2: shade($blue, 40);
$blue-shade-1: shade($blue, 20);
$blue-tint-1: tint($blue, 20);
$blue-tint-2: tint($blue, 40);
$blue-tint-3: tint($blue, 60);

$green: #31947c;
$green-shade-2: shade($green, 40);
$green-shade-1: shade($green, 20);
$green-tint-1: tint($green, 20);
$green-tint-2: tint($green, 40);
$green-tint-3: tint($green, 60);

$orange: #bd853f;
$orange-shade-2: shade($orange, 40);
$orange-shade-1: shade($orange, 20);
$orange-tint-1: tint($orange, 20);
$orange-tint-2: tint($orange, 40);
$orange-tint-3: tint($orange, 60);

$red: #b9403e;
$red-shade-2: shade($red, 40);
$red-shade-1: shade($red, 20);
$red-tint-1: tint($red, 20);
$red-tint-2: tint($red, 40);
$red-tint-3: tint($red, 60);

file12.txt

@import "bootstrap/variables";

file13.txt

@import "bootstrap-custom/variables";

file2.txt

@import "bootstrap-sprockets";
@import "bootstrap";

file3.txt

//= require bootstrap-sprockets

file4.txt

// Core variables and mixins
@import "bootstrap/variables";
@import "bootstrap/mixins";

// Reset and dependencies
@import "bootstrap/normalize";
@import "bootstrap/print";
@import "bootstrap/glyphicons";

// Core CSS
@import "bootstrap/scaffolding";
@import "bootstrap/type";
@import "bootstrap/code";
@import "bootstrap/grid";
@import "bootstrap/tables";
@import "bootstrap/forms";
@import "bootstrap/buttons";

// Components
@import "bootstrap/component-animations";
@import "bootstrap/dropdowns";
@import "bootstrap/button-groups";
@import "bootstrap/input-groups";
@import "bootstrap/navs";
@import "bootstrap/navbar";
@import "bootstrap/breadcrumbs";
@import "bootstrap/pagination";
@import "bootstrap/pager";
@import "bootstrap/labels";
@import "bootstrap/badges";
@import "bootstrap/jumbotron";
@import "bootstrap/thumbnails";
@import "bootstrap/alerts";
@import "bootstrap/progress-bars";
@import "bootstrap/media";
@import "bootstrap/list-group";
@import "bootstrap/panels";
@import "bootstrap/responsive-embed";
@import "bootstrap/wells";
@import "bootstrap/close";

// Components w/ JavaScript
@import "bootstrap/modals";
@import "bootstrap/tooltip";
@import "bootstrap/popovers";
@import "bootstrap/carousel";

// Utility classes
@import "bootstrap/utilities";
@import "bootstrap/responsive-utilities";

file5.txt

@import "bootstrap";

file6.txt

@import "bootstrap-custom";

file7.txt

bootstrap-sprockets-custom.js

file8.txt

//= require bootstrap/affix
//= require bootstrap/alert
//= require bootstrap/button
//= require bootstrap/carousel
//= require bootstrap/collapse
//= require bootstrap/dropdown
//= require bootstrap/tab
//= require bootstrap/transition
//= require bootstrap/scrollspy
//= require bootstrap/modal
//= require bootstrap/tooltip
//= require bootstrap/popover

file9.txt

//= require bootstrap-sprockets