Issue #260 Fix

Issue: https://github.com/simplepie/simplepie/issues/260

Fix: http://stackoverflow.com/questions/14337179/why-am-i-getting-memory-leaks-in-simplepie-when-using-item-get-permalink/
Coding Standards fix (if statements)
Merge branch 'master' of https://github.com/kkirsche/simplepie