Update rails version to 3.2.12
Update config files
Use quiet_assets for debugging
Cleanup

- Remove extra newlines
- Remove tailing whitespaces
- Modify indent
Send CSRF Token
Lock jquery-rails version in 2.1.4

Use jQuery 1.8.x
Regenerate devise configuration
Use twitter-bootstrap as gem
Specify helper methods in controller to private methods
Fix path to tomato.gif
Upgrade jquery mobile version for using as gem
Modify filetype

- 755 -> 644
Set precompilation for assets

On heroku, `rake assets:precompile` is failed with the following message.

```
could not connect to server: Connection refused
Is the server running on host "127.0.0.1" and accepting
TCP/IP connections on port 5432?
```

To avoid this error, I set configuration for assets.

ref: https://devcenter.heroku.com/articles/rails3x-asset-pipeline-cedar#troubleshooting
Update bundle
Add inline css to stop inserting line feed
Downgrade jquery-mobile version to '~> 1.1.0'

Because higher version broke css.
Avoid security warning

- http -> https