change array short syntax [] to full syntax for supporting PHP5.3

Hi Guys

I changed all short array syntax `[]` to full syntax `array()` in order to support PHP5.3.  because composer.json said incubator could support `"php": ">=5.3.6"`.  Also I think PHP5.3 should be support for a little more time, such as Ubuntu 12.04LTS stardard php version is 5.3.10