Bootstrap into symfony bundle

Got this PR I am following this url
- http://symfony.com/doc/current/book/templating.html#including-stylesheets-and-javascripts-in-twig
- https://coderwall.com/p/kzyiaw

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#### ../composer.phar update 
I got the following error when I tried to run the following commands 
´../composer.phar update´  and ´sudo port update´
I solved in this way
`sudo port -d sync
sudo port install php5-openssl
../composer.phar update`
Reference: http://samkhan13.wordpress.com/2012/06/15/make-macports-work-behind-proxy/