Merge pull request #41 from kmerz/thin

Use thin as default webserver
Update Rails to 4.0.1
Merge pull request #42 from h5b/rails

Update Rails to 4.0.1
Redesign new snippet form
- since the new_form was brought to the frontpage we need to
  be more carefull with the space. I used the bootstrap grid layout
  to reorganize the form. It is more practical now as well.
Enable asset compliation

- we fix the bootstrap-sass since the newer version
  seems a bit buggy
- we fix the glyphicons-* to app asset images so we
  can add them to the application.css.scss and override
  the asset-url
- we serve the static in production mode since
  we want to run on thin in production mode and
  nginx and apache will not do it for us
- remove ugly white space