Fix __init__.py and private.py install command.
Fix __init__.py and private.py install command.

Reviewer: Luciano Wolf <c353ae890f0e6de8473e43011f009ccd38a3c452@openbossa.org>
Reviewer: Renato Filho <16af9705e5a16d85aed275f2f9e8171326ec17f6@openbossa.org>

qtproject/pyside-pyside,gbaty/pyside2,M4rtinK/pyside-bb10,PySide/PySide,pankajp/pyside,M4rtinK/pyside-android,pankajp/pyside,M4rtinK/pyside-android,BadSingleton/pyside2,pankajp/pyside,IronManMark20/pyside2,qtproject/pyside-pyside,IronManMark20/pyside2,M4rtinK/pyside-bb10,enthought/pyside,RobinD42/pyside,RobinD42/pyside,qtproject/pyside-pyside,RobinD42/pyside,gbaty/pyside2,IronManMark20/pyside2,enthought/pyside,M4rtinK/pyside-android,gbaty/pyside2,BadSingleton/pyside2,BadSingleton/pyside2,RobinD42/pyside,BadSingleton/pyside2,M4rtinK/pyside-bb10,enthought/pyside,enthought/pyside,BadSingleton/pyside2,enthought/pyside,gbaty/pyside2,IronManMark20/pyside2,M4rtinK/pyside-android,PySide/PySide,enthought/pyside,RobinD42/pyside,M4rtinK/pyside-bb10,M4rtinK/pyside-bb10,PySide/PySide,RobinD42/pyside,IronManMark20/pyside2,enthought/pyside,RobinD42/pyside,M4rtinK/pyside-bb10,gbaty/pyside2,qtproject/pyside-pyside,pankajp/pyside,M4rtinK/pyside-android,qtproject/pyside-pyside,M4rtinK/pyside-android,pankajp/pyside,PySide/PySide,PySide/PySide