update travis script, install pyside through apt-get, not pip install
update travis script, install pyside through apt-get, not pip install


Former-commit-id: f0e59f4a8ecfa74e733b7cc910b65eae4598f0ac
muslih/alfanous,muslih/alfanous,muslih/alfanous,muslih/alfanous,muslih/alfanous,muslih/alfanous,muslih/alfanous