update Twitter Bootstrap V.3.0.0
Update application.css
Improve file naming for generated initializers
Don't use the ActiveSupport::SafeBuffer when using erb and Sinatra as middleware. Fixes #1256.

Add test case.
Add third-party apps support.
Merge pull request #1418 from namusyaka/fix-erb-of-sinatra

Escaped erb bug fix #1256
Add basic test setup with an empty test
Using RbConfig for more precise output of OS
Complete test for os module
Get rid of unused mock_app method
Make slim template concat TODO a TODO again
Merge pull request #1419 from matthias-guenther/performance-tests

Performance tests
Use symbol instead of block if available.
Fix indentation for protected methods.
Fix mistakes in padrino-core/README.rdoc. [ci skip]
Merge pull request #1383 from WaYdotNET/twb_v3

update Twitter Bootstrap V.3.0.0