Update phalcon to 0.9.0

http://blog.phalconphp.com/post/42369409581/phalcon-framework-0-9-0-released

Use gcc to prevent following errors:

dyld: lazy symbol binding failed: Symbol not found: _phalcon_Phalcon_DI_Injectable_init
  Referenced from: /usr/local/Cellar/php54-phalcon/0.9.0/phalcon.so
  Expected in: flat namespace

dyld: Symbol not found: _phalcon_Phalcon_DI_Injectable_init
  Referenced from: /usr/local/Cellar/php54-phalcon/0.9.0/phalcon.so
  Expected in: flat namespace

Trace/BPT trap: 5