Remove category trait
Remove category trait

- Was misspelled as "catagory", so my script missed it.
- also updated year to 2013

svycka/zend-form,zendframework/zend-form,MadCat34/zend-form,zendframework/zend-form,marek-saji/zend-form,adamlundrigan/zend-form,svycka/zend-form,MadCat34/zend-form,akrabat/zend-form,akrabat/zend-form,adamlundrigan/zend-form,marek-saji/zend-form