[zendframework/zf2#1859] renamed getter for wrap elements boolean
[zendframework/zf2#1859] renamed getter for wrap elements boolean

- Since it's a boolean, it's a question; no need for "get" prefix
- Use the accessor when testing the boolean, not the property

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